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461 SCHONLEIN-HENOCH PURPURA IN THE ADULT A Study of 77 adults with Anaphylactoid or Schonlein-Henoch Purpura1 B Y J. J. CREAM,2 J. M. GUMPEL,3 AND R. D. G. PEACHEY4 (From St. Thomas' Hospital, and St. John's Hospital for Diseases of the Skin, London) With Plates 36 to 38 1 a Received February 27, 1970. Dr. J. J. Cream is now at St. John's Hospital for Diseases of the Skin, Homerton Grove, London. 8 Dr. J. M. Gumpel is now at the Department of Medicine, Royal Postgraduate Medical School, Ducane Road, London. 4 Dr. R. D. G. Peachey is now at St. John's Hospital for Diseases of the Skin, Lisle Street, London. Quarterly Journal of Medicine, New Series, XXXIX, No. 156, October 1970. n u Downloaded from by guest on September 12, 2016 Introduction ANAPHYiiACTOiD or Schonlein-Henoch purpura are the names generally applied to a syndrome which may include a characteristic and usually purpuric rash, oedema, arthritis, gastrointestinal manifestations, and nephritis. The underlying pathological process is a vasculitis affecting small vessels, which may be mild or severe: the clinical picture depends on the site, the extent, and the severity of the vessel involvement. Schonlein in 1837 originally used the term 'peliosis rheumatica' for the combination of joint pains with the typical rash and noted that the internal organs, the heart and great vessels, may also be affected. Henoch (1874) reported four children with the rash, colic, bloody diarrhoea, and painful joints, and later (1899) emphasized the frequent association of nephritis. Osier (1914) suggested that anaphylactic phenomena might play a part in the aetiology of some cases and the term 'anaphylactoid purpura' was first used by Frank (1915) and by Glanzmann (1916). Gairdner in 1948 reviewed the clinical features of 12 patients and noted that 10 of them as well as the majority of patients in the literature were under 15 years of age. There have since been further descriptions of the disease and its various features in several large series of children, with special regard to the renal complications as these are potentially the most lifethreatening (Philpott, 1952; Oliver and Barnett, 1955; Wedgwood and Klaus, 1955; Burke, Mills, and Stickler, 1960; Sterky andThilen, 1960; Allen, Diamond, and Howell, 1960; Roberts, Slater, and Laski, 1962). In contrast to the extensive literature concerning paediatric cases there is little information about adults and the classification of the disease in adults and its terminology is very confused. Renal complications in adults are thought 462 J. J. CREAM, J. M. GUMPEL, AND R. D. G. PEACHEY Patients and Methods The patients who form the basis for this study were found mainly by searching under the headings 'purpura' and 'allergic vasculitis' in the diagnostic indexes of St. Thomas' Hospital (in-patients only) and of St. John's Hospital for Diseases of the Skin (in and out-patients) over the period 1956 to 1968. Our criteria for admission to the study were that patients were over 15 years old, that there had been crops of purpura, and that the platelet count had been normal. We Downloaded from by guest on September 12, 2016 to have a more serious prognosis, but this view is based largely on isolated case reports. Ruiter in a series of papers (1948, 1952, 1956, and 1964) described a group of mainly adult patients with 'arteriolitis allergica cutis' who had intermittent purpuric, macular, and papular rashes which persisted for variable periods of time. In a number of cases there were joint swellings and abdominal symptoms, and in one patient transient haematuria. Gougerot and Blum (1950) and Gougerot and Duperrat (1954) reported a somewhat similar group of patients under the title of 'Nodular dermal allergide'. They described a 'trisymptome' complex with small round nodules 2 to 7 mm in diameter, purpuric macules, and erythematopapular elements as well as 'tetrasymptome' and 'pentasymptome' complexes which had, in addition, bullae and ulcers. The rash in these patients had a predilection for the legs and occurred in crops lasting 15 to 60 days. Attacks in some cases recurred for many years, and fever, arthralgia, fatigue, and headache were sometimes associated. Histological examination showed endothelial swelling in skin capillaries and arterioles with fibrinoid necrosis and a predominantly polymorph infiltrate. Leucocytoclasis was often present. In 1964 Winkelmann and Ditto reviewed the various forms of cutaneous and systemic necrotizing vasculitis and reported 38 cases of 'allergic vasculitis' selected because of histological evidence of leucocytoclastic angiitis. The rash was similar to that described by Ruiter (1964) and to the description given by Gougerot and Duperrat (1954) and in 13 per cent of cases was the sole manifestation of disease. In the others there was evidence of systemic involvement such as joint pain, urinary abnormalities, gastrointestinal manifestations, and occasional involvement of the lungs, heart, eyes, and nervous system. A further group of patients selected on a similar basis was described by Wilkinson (1965), and Ramsay and Fry (1969) reported 21 patients with a clinical diagnosis of 'allergic vasculitis'. The common features of the various groups suggest that these are not in fact separate disease entities but that the groupings have been arbitrarily selected from a spectrum of disease. The histological features of the skin lesions within a single case may vary greatly depending on the site of the biopsy and the age of the lesion, and are not specific for any clinically definable group of patients. In order to ascertain more clearly the clinical features and prognosis of this condition in adults, we have studied a group of 77 adult patients with crops of purpura and a normal platelet count. SCHONLEIN-HENOCH PURPURA IN THE ADULT 463 excluded patients in whom the purpura appeared to be secondary to other conditions such as malignant disease, other connective tissue disorders, venous stasis, steroid therapy, scurvy, and capillaritis of the carbromal or Schamberg type. Three patients were included in whom the platelet count was not recorded: two of them had histological confirmation of vasculitis, and the third had arthritis, gastrointestinal and renal manifestations, as well as purpura. I ) Female 12 10 8 M 6 4 2 0 25 35 45 55 65 >65 Age in years Fio. 1 shows the age of onset and sex ratio of 77 patients by decade. A detailed follow-up history and examination was obtained on 34 patients, who were either still attending the hospitals, or who had responded to a postal request. The mean duration from onset of disease to follow-up in these 34 patients was 5-3 years. The investigations included: blood-pressure, urine analysis, full blood count, erythrocyte sedimentation rate (Westergren), plasma urea and creatinine clearance. Serological studies included a Rose-Waaler and slide latex test, immunoglobulin estimations by the Mancini technique (Dr. G. L. Scott), and immunofluorescent antinuclear antibodies (Dr. E. J. Holborow). Follow-up information was obtained from the case notes of the remainder. Illustrative case histories are given for seven patients in an appendix. Results Patients During the 12-year period 28 patients seen at St. John's Hospital and 49 at St. Thomas' Hospital fulfilled the criteria. The sex distribution was equal, 39 males and 38 females, both over-all and from each hospital (Fig. 1). The mean Downloaded from by guest on September 12, 2016 "8 464 J. J. CREAM, J. M. GUMPEL, AND R. D. G. PEACHEY age of onset for men was 43-7 years, and for women 43-3 years. There were more men than women affected between 16 and 25 years of age, but thereafter there was little difference in the sex distribution. Fig. 2 shows the monthly onset of cases throughout the year. 12 - 1 •3 a a, 2 3 4 5 6 7 8 9 10 11 12 Month F I G . 2 shows the month of onset of Schonlein-Henoch purpura. Antecedent events Possible aetiological factors were detected in 37 patients. Medications, frequently proprietary mixtures, were the commonest; 29 different preparations had been taken by 32 patients in the three weeks before the first manifestation. Usually, there was insufficient evidence to prove a causal relationship, but one patient developed purpura after taking cyclopenthiazide and again six months later after bendrofluazide. In some cases the medications may well have been taken for prodromal symptoms. A cold, sore throat, or 'flu-like' illness preceded the onset of the purpura in 22 patients, and at least 17 of these had taken a medication of some sort. Haemophilus parainfluenzae and pneumococcus were each cultured from the throat of one patient, and E. coli isolated from the urine of two others. Evidence for streptococcal infections Evidence of streptococcal infection was shown by isolation and culture of /3-haemolytic streptococci in three patients and by a raised anti-streptolysin 'O' (ASO) titre in a further 14. Negative throat cultures were obtained in 28 patients but are of doubtful significance, as many had received a prior course Downloaded from by guest on September 12, 2016 1 SCHONLEIN-HENOCH PURPURA IN THE ADULT 465 of antibiotics. In 14 patients the ASO titre was normal, as it was in two of the three patients from whom streptococci had been isolated. A comparison between those with and without evidence of streptococcal infection showed little difference in the systems involved. The 17 patients with evidence of streptococcal infection were on average younger, mean age 37-7 years as against 47*4 years, but not significantly so (« = 1-65, 0-2 > P > 0-1) and 10 of them had had upper respiratory or 'flu-like' symptoms, compared with only two of the 14 with negative ASO titres. TABLE Area, Number Lower leg Thighs Buttocks Lower trunk Upper trunk Arms Hands Face Palate 74 52 21 11 1 32 5 3 1 II. Forms of skin lesions in 77 patients Form Purpura Papular lesions Confluent areas of erythema and purpura Confluent areas of purpura Nodules Blisters Ulceration and necrosis Livedo reticularis Pustules Number involved 77 48 8 7 2 12 12 2 2 Cutaneous manifestations All the patients had purpura, which was usually painless but there was an occasional complaint of itching or stinging. The extent and number of the spots varied from scanty purpura confined to the legs to a widespread and profuse eruption over the limbs and trunk. The distribution of the rash is shown in Table I. Purpura was commonly seen within erythematous macules or slightly raised lesions but not infrequently appeared as the sole manifestation of the skin involvement. In some cases a number of erythematous macules and papules were present in which no purpura could be detected. Other forms of the skin lesions are listed in Table II. It was common to find several morphological forms present at the same time. Blisters, sometimes haemorrhagic, occurred in 12 patients and ulceration, which was usually painful and followed by scarring, was noted in 12. Two patients had pustules in purpuric patches, but no organisms were obtained on culture. Livedo reticularis was present in two patients, one of whom had positive rheumatoid and antinuclear factor tests (Case 68). Downloaded from by guest on September 12, 2016 TABLE I. Distribution of rash 466 J. J. CREAM, J. M. GUMPEL, AND R. D. G. PEACHEY In many patients the purpura continued to appear for some time (Table III). In 43 patients the rash had cleared completely within six weeks of the onset, but in 20, crops of purpura appeared for over one year, and when 11 of these patients were last seen fresh purpura was still appearing. One man had crops of purpura over a period of 17 years coinciding with upper respiratory tract infections (Case 72, report appended). Usually recurrences were not as severe as the original rash and, with two exceptions, were not accompanied by arthralgia or abdominal symptoms. TABLE III. Toted known duration of rash in 74 patients Period of time over which rash recurred Less than six weeks Less than six months Less than one year Longer than one year TABLE No. of patients 43 9 2 20 IV. Unusual features in six patients in whom purpura recurred for over one year 11 67 68 70 74 77 Unusual features Raynaud's phenomenon and hyperglobulinaemia Widespread visceral vasculitis Rheumatoid and antinuclear factors present in serum Elevated serum IgM level Chronic hepatitis, cryoglobulinaemia and immune complex nephritis Late-appearing polyarthritis with positive L.E. cell test and antinuclear factor. Recurrences for 11 years 4 7 1 5 12 In the group of 20 patients with recurrent purpura for more than one year, unusual features later became obvious in six (Table IV). At subsequent laparotomy one patient was found to have an extremely widespread visceral arteritis (Case 67, report appended). Another was found 12 years later to have a positive L.E. cell test and antinuclear antibodies, previous searches having been negative {Case 77, report appended). Chronic hepatitis was demonstrated in one patient who later developed renal disease {Case 74, report appended). One patient had Raynaud's phenomenon and marked hypergammaglobulinaemia {Case 11), while another had positive rheumatoid and immunofluorescent antinuclear factor tests but without evidence of other disease {Case 68). One patient {Case 70) had a moderately elevated serum IgM level of 500 mg/100 ml (normal range 50-110 mg/100 ml). Systemic involvement Other organs, such as the gut, kidneys, joints, and lungs, were affected in various combinations in 64 patients, and the frequency of such involvement is Downloaded from by guest on September 12, 2016 Case no. SCHONLEIN-HENOCH PURPURA IN THE ADULT 467 shown in Table Va. There was no correlation between the severity of the skin lesions and the incidence or severity of systemic involvement, nor did there appear to be a characteristic pattern in which the latter developed. The rash came first in 36 patients, while gastrointestinal involvement was the initial manifestation in six, and coincided with the rash in a further two. The joints were involved initially in three, and at the same time as the skin in a further 15. The kidneys were affected first in one patient, while in another the skin, gut, joints, and kidneys were affected simultaneously. The clinical patterns of systemic involvement are shown in Table V6. In all there were 15 patients who had involvement of skin, gastrointestinal tract, joints, and kidneys, and two of them also had pulmonary disease. TABLE V (O). Frequency of clinical involvement of other organs, besides the skin in 64 patients TABLE No. of patients 34 39 43 4 V (b). Clinical patterns of systemic involvement Clinical patterns No. of patients S 13 SG 5 SR 11 SJ 11 8GB 4 SG J 8 SR J 8 SGRJ 13 SG J L 1 SGRJL 2 SGRL 1 Total 77 S = skin G = gut R = renal J = joint L = lung Joint involvement Arthralgia or frank arthritis was noted in 43 patients. The joints affected (Table VI) were usually knees or ankles but other joints including those of the hands and feet were sometimes involved. Symptoms rarely lasted for more than a few days and signs of arthritis were transient although the arthritis, albeit temporary, was occasionally severe. Downloaded from by guest on September 12, 2016 Systems affected Gastrointestinal tract Renal tract Joints Lungs 468 J. J. CREAM, J. M. GUMPEL, AM) R. D. G. PEACHEY Gastrointestinal involvement Evidence of gastrointestinal involvement was noted in 34 patients (Table VII). Abdominal pain, present in 26 patients, was usually colicky but occasionally severe and persistent enough to require considerable quantities of morphia for relief. In six cases episodes of pain recurred several times during a period of hospitalization, sometimes with intervals of several weeks between bouts. Three patients vomited blood and nine passed blood per rectum, while in another 11 occult blood loss was detected in the faeces. Diarrhoea, nausea, and vomiting occasionally led to gross dehydration and uraemia. One patient, with persistent gastrointestinal irritation, remained intermittently obstructed for several weeks, and was subjected to laparotomy on two occasions (Case 42, report appended). Protein loss from the gut was proven, using 131Iodine polyvidone or "Chromium chloride, in five of the seven patients in whom these investigations were performed, and probably occurred in a considerable number of the patients with hypoalbuminaemia without significant proteinuria. Coincidental loss of protein from the gut and kidneys in the same patient was difficult to prove unless frequent measurements of both were performed. TABLE VI. Joints involved in 43 patients 29 26 12 10 6 2 3 ms of gastrointestinal invtilveme Abdominal pain Frank blood loss Minor blood loss Diarrhoea Nausea with vomiting Constipation 26 12 11 12 10 3 Oedema Oedema was present at some time during the course of the illness in 44 patients. Most commonly it was present on the legs and ankles and coincided in time with the development of the skin rash but was not necessarily at the same site. In one patient swelling of the genital region occurred in association with a profuse rash on the legs, thighs, and buttocks. In most of these patients there were other possible causes for the swelling, such as hypoalbuminaemia, renal disease, cardiac failure, venous thrombosis, or arthritis, but in eight the only possible explanation for the oedema seemed to be that it was due to the Downloaded from by guest on September 12, 2016 Knee(s) Ankle(s) Wrist(s) Elbow(s) Metacarpo-phalangeal and interphalangeal of hands Metatarso-phalangeal and interphalangeal of feet Shoulder(s) SCHONLEIN-HENOCH PURPURA IN THE ADULT 469 cutaneous vascuhtis and, in all probability, this was responsible in many of the others. In one patient vasculitis was found on biopsy of an oedematous, but not purpuric, area of skin on the leg. Renal involvement Abnormalities in the urine were noted in 38 of the 75 patients in whom this examination had been recorded. Renal involvement could be divided into three main types: abnormalities of the urine only, acute nephritis, and slowly progressive renal failure without an initial acute nephritic syndrome (Table VIII). In addition there was one patient in whom tubular dysfunction was the only evidence of renal disease and she was found at laparotomy to have a widespread arteritis involving muscle, liver, gall bladder, and kidney. TABLE VIII. Renal involvement in anaphylactoid purpura Mean age 19 Male/ female 14-5 16 a-8 52 years 3 1-2 43 years 1 0-1 No. 47 years Patients with abnormalities of the urine only In 16 patients urinary abnormalities were found, without impairment of renal function or an obvious acute nephritic episode. Microscopic haematuria was present in all of these cases; in addition eight had albumin and eight had casts in the urine. The abnormalities persisted for less than a month in all but one patient, in whom they cleared after two months. Eight patients had been seen after a period of six months or more: none had had any recurrence of urinary abnormality and five were well at review two to six years later. Acute nephritis Episodes of acute nephritis with fluid retention were observed in 19 patients. In most of these the acute nephritic episode occurred within a few days of the onset of purpura but in eight who initially had normal urine, the renal disease appeared much later; between three and six weeks later in five, up to three months later in two, and five years later in one (Case 74, report appended). Acute hypertension with left ventricular failure developed in eight of the 19 patients in this group and in three of these it followed an episode of oliguria while the patient was in hospital. The blood-pressure returned to normal with resolution of the nephritis in all but one patient, in whom progressive cardiac Downloaded from by guest on September 12, 2016 Acute nephritis Abnormalities of urinary sediment only Slowly progressive renal failure Widespread arteritis with renal tubular acidosis 470 J. J. CREAM, J. M. GUMPEL, AND R. D. G. PEACHEY Progressive renal failure Three patients, who initially had urinary abnormalities only, subsequently developed slowly progressive renal disease. One, a boy of 17 years, passed through a nephrotic stage into chronic renal failure and died two and a half years later. Serial renal biopsies showed progressive focal proliferative disease. Two women, both aged 55 years, initially had minima,! evidence of renal disease, but within six months had shown an increasingly abnormal sediment, Downloaded from by guest on September 12, 2016 and renal failure persisted until his death five years later {Case 37). In most patients oliguria lasted only a few days but one patient died of anuric renal failure 10 days after the onset of purpura despite peritoneal dialysis and massive doses of prednisone. Almost all of the patients in this group had heavy proteinuria. Haematuria was usually microscopic but was gross in three cases and produced 'smoky' urine in six. Casts, usually granular, were frequently seen. Hypoproteinaemia was a marked feature in eight patients, but a number of these also had gastrointestinal symptoms, and may have had protein-losing enteropathy. Six patients with both gastrointestinal and renal involvement had elevated blood-urea levels and it was difficult to be certain whether the deterioration in renal function was due solely to renal involvement, or to fluid loss from the alimentary tract. In five patients a urinary protein loss of five or more grammes per day was recorded as an early complication of their acute nephritis. In four of these the blood-urea levels were raised to between 60 and 85 mg/100 ml. The nephrotic phase lasted one month in two, six weeks in two, and six months in the fifth. This last patient received large amounts of azathioprine and prednisone (Case 57, report appended). The subsequent renal status of this group of patients, excluding the two patients who died, is shown in Table IX. Within six months of the episode of acute nephritis 13 patients (68 per cent) were normotensive, had a normal blood-urea and had no abnormality on urine examination (Table IXa). Eight of these patients were available for subsequent review: Two had developed malignant hypertension, which was subsequently well controlled by hypotensive drugs, while six were well. However, one was found to have a blood-pressure of 170/90 mmHg, and three had elevated blood-urea levels. Of the other five patients we have little information but proteinuria had been subsequently recorded in two. In four patients (Table 1X6) the urinary abnormalities persisted for longer than six months. In one who had had persistent microscopic haematuria and proteinuria for a year, the blood urea was found to be 45 mg/100 ml, the creatinine clearance was reduced and the blood-pressure was 160/90 mmHg at review five years later. Of the two patients with persistent urinary abnormalities for 18 months, one four years later was found to have heavy proteinuria and numerous red cells in the urine but was otherwise well and the other, 10 years later, was asymptomatic and had normal investigations. At the time of writing one patient still has evidence of persistent active renal disease 18 months from the onset of nephritis, despite treatment with both prednisone and azathioprine. SCHONLEEN-HENOCH PURPURA IN THE ADULT 471 with casts and red cells, and in addition developed proteinuria of up to 3 g/24 hours. Renal biopsies showed nephrosclerosis in one and tubular atrophy in the other. One year later both had reduced creatinine clearances but no other abnormalities. TABLE IX. Subsequent course of 19 patients with acute nephritis Condition at review (a) Thirteen patients in whom the urinary abnormalities had disappeared within six months. Urinary No. of abnormal- patients ities lasted Less than 6 months Years after onset B.P. Urea Creatinine (mg/100 ml) clearance (ml/min) 7 7 140/90* 140/75* 130/70 130/80 140/70 170/90 46 65 30 31 55 24 65 46 6t 5 4 l-5f 0-8 0-8 130/70 Little further information Comment 82 Clear Well 77 118 48 Clear . Clear Clear Clear Well Well .. 54 Albumin WeU WeU WeU WeU (6) Four patients in whom urinary abnormalities werestill present at six months lyr. l 5 160/90 45 45 Hyrs. 2 10t 4t 130/90 120/70 40 28 86 156 ljyrs. 1 Persistent activity still 1J yrs. after onset of renal disease Clear WeU Clear WeU Protein WeU (2-5g/24 hrs.) and red cells * Treated malignant hypertension. t Developed nephrotic syndrome during active phase. Respiratory-tract involvement Symptomatic evidence of respiratory disease was present in four patients. One had persistent haemoptysis for several weeks before the onset of purpura, but no abnormality was found on radiography or bronchoscopy. Three patients some weeks after onset but whilst still acutely ill developed recurrent pleuritic pain, initially unilateral but becoming bilateral, and this recurred over several weeks. Pleural friction rubs were present, and there was clinical and radiological evidence of pleural effusion and underlying pulmonary consolidation, all of which tended to improve and recur. The radiological sequence in Patient no. 57 is shown in Plates 36 to 38, Figs. 3 to 7. Haemoptysis occurred in two of the three. The pulmonary lesions were extremely puzzling at the time, simulating pneumonia or pulmonary emboli, and indeed one patient was put on anticoagulant treatment, but this resulted in an increase of haematuria. The other Downloaded from by guest on September 12, 2016 5 Urine 472 J. J. CREAM, J. M. GUMPEL, AND R. D. G. PEACHEY two were at the time on large doses of prednisone (40 mg/day or more). A fifth patient, who has had recurrent crops of purpura for three years, has recently begun to have haemoptysis coincident with attacks of purpura and on laryngoscopy was seen to have haemorrhagic lesions in the larynx. Other investigations During the acute stage the erythrocyte sedimentation rate (ESR Westergren) was 20 mm/hr or less in 32 patients, elevated above 20 mm/hr in 35 patients, and above 100 mm/hr in four patients. Two of the four patients with grossly elevated sedimentation rates are described in attached case reports (Cases 42 and 67), a third was still having recurrent purpura two years later, while the fourth was well with a normal ESR seven years later. Serum protein abnormalities, other than hypoalbuminaemia, were found in 16 out of 45 patients: increased alpha2 globulins were found in eight, and increased gamma globulins in nine. TABLE X. Details of positive Rose-Waaler and latex slide tests in seven patients Interval of test from onset of purpura 11 68 72 74 69 70 63 6 yrs. 512,1 H yrs. 4 13 yrs. 64 4 yrs. 512 6 yrs. 64 1 yr. < 4 iyr- <4 ++ — ++ + ++ + 7 yrs. 1024+ + H yrs. 206 + + 14 yrs. 16 — 9 yrs. 64 2 yrs. 64 - 10 yrs. <4 ih y^. <4 + + 1 Result of Rose-Waaler test, expressed as titre. * Result of Latex slide test, expressed + + , + , or —. L.E. cell preparations were performed in 27 patients whilst in a phase of active disease, and were negative in all: L.E. cells were subsequently found in one patient 12 years later (Case no. 77). Rheumatoid factor tests were positive in seven patients but without clinical or radiological evidence of rheumatoid arthritis, and are shown with subsequent tests in Table X. Two patients early in the course of the disease were noted to have antinuclear antibodies (Cases 68 and 74). Serum immunoglobulin levels were measured in eight patients with active disease and were normal in seven whilst one had an IgM level of 500 mg/ 100 ml. Seventeen patients who were seen at follow-up and whose disease was no longer active had normal immunoglobulin levels. Antinuclear factors were not found in 25 patients. Skin biopsies The skin biopsies of 25 patients were reviewed by Dr. G. C. Wells, without any clinical information. All but six of these patients had shown evidence of systemic involvement. Evidence of vasculitis was present in 19, and non-specific inflammatory changes in six. In 16 the vasculitis was confined to a particular Downloaded from by guest on September 12, 2016 Patient no. SCHONLEIN-HENOCH PURPURA IN THE ADULT 473 level in the dermis, while in the others it affected vessels throughout the dermis. Leucocytoclasis was seen in 18, and fibrinoid necrosis in 13 of these. Both were present in the nine patients with changes throughout the dermis but there was no correlation between the depth or extent of vessel involvement, the presence of fibrinoid necrosis or leucocytoclasis, and the clinical pattern, duration of disease, or unusual clinical features. One patient had biopsies from three different sites on the same occasion, two of which showed vasculitis at all levels in the dermis, whilst in the third the vasculitis was confined to the sub-papillary and mid dermal zones. Downloaded from by guest on September 12, 2016 Discussion Although it was expected that the patients referred to St. John's Hospital for Diseases of the Skin might have had less systemic involvement than those referred to St. Thomas' Hospital, in fact there was little difference between the two groups with regard to the frequency of joint, gut, and renal involvement. The degree of involvement of these was greater in the St. Thomas' patients, and severe renal involvement was considerably more common at St. Thomas'. The over-all sex incidence was identical, but in the age groups 16 to 25 years, males predominated, and this would fit with the male predominance noted in several large paediatric series (Gairdner, 1948; Philpott, 1952; Wedgwood and Klaus, 1955; Panos, 1957). Anaphylactoid purpura is rarely attributable to any definite cause. On rare occasions food allergy has been reported as a precipitant, and the evidence for this was reviewed by Ackroyd (1953). Drugs such as tetracycline (Calnan and Lister, 1950), diphenhydramine (Benadryl), and the weed killer 2,4-D (Winkelmann, 1958) have been considered causative in individual cases, and Winkelmann and Ditto (1964) commented that in 20 out of 36 cases of allergic angiitis drugs or chemicals such as aspirin, phenacetin, phenothiazines, penicillin, sulphonamides, griseofulvin, tetracycline, erythromycin, quinidine, and iodides were considered as possible aetiological agents. There are, however, very few reports in which there is unquestionable evidence of an association between drug and rash, such as recurrence of the rash following re-exposure to the agent. Evidence which is satisfactory is produced by BjQmberg and Gisslen (1965) for thiazides, Symmers (1958) for aspirin, and by Oreger and Houseworth (1954) for quinine. One patient of ours (Case 60) provides further confirmation that thiazides may induce vasculitis. Insect bites and stings have also been reported as possible aetiological agents (Burke and Jellinek, 1954; Sharan, Anand, and Sinha, 1966) as have immunizations and vaccinations (De Angelis, 1960; Giordano and Cordone, 1965). SchSnlein (1837) and Glanzmann (1916, 1920) stressed that an infection often precedes the disease, and Gairdner (1948) reported the isolation of streptococci from 11 out of 18 patients. He suggested that infections, particularly streptococcal infections of the respiratory tract, played a dominant aetiological role in many patients. In a first attack precipitated by a sore throat, he noted that the time interval between infection and the onset of the rash was from 10 days to 474 J. J. CREAM, J. M. GUMPEL, AND R. D. G. PEACHEY Downloaded from by guest on September 12, 2016 four weeks, and that in subsequent attacks precipitated by a sore throat, this interval was often considerably reduced. Lewis (1955) found that the proportion of patients from whom haemolytic streptococci was isolated was approximately the same in anaphylactoid purpura (24-3 per cent), acute nephritis (22-1 per cent), and acute rheumatism (19-3 per cent), whereas in control patients a much lower rate of isolation (7-3 per cent) was obtained. Bywaters, Isdale, and Kempton (1957) who investigated 64 cases of Sch5nlein-Henoch purpura, mainly in children, found that the ASO titres were raised in a third, but this was similar to the prevalence in a control group of children with non-rheumatic disorders, and half that found in children with rheumatic fever. Group A /?haemolytic streptococci were found in a quarter of patients with anaphylactoid purpura, and this rate of isolation was intermediate between the rheumatic and non-rheumatic groups. Vernier, Worthen, Peterson, Colle, and Good (1961) found a similar prevalence of raised ASO titres in 45 children, and isolated /?haemolytic streptococci in only seven. In the present series the ASO titre was elevated in half of those in whom the test was performed and /J-haemolytic streptococci were isolated in only a small number, but many of our patients, like those of Vernier, Worthen, Peterson, Colle, and Good (1961) had received prior antibiotic therapy. Streptococcal antigen has been demonstrated in the glomeruli in post-streptococcal nephritis (Andres, Accinni, Hsu, Zabriskie, and Seegal, 1966) and in the skin vessels in nodular vasculitis (Parish and Rhodes, 1967), but until streptococcal antigen has been identified in the lesions in SchOnlein-Henoch syndrome, the role of the streptococcus must remain in doubt. In the present series of adults the morphology and distribution of the rash closely resembles that described by Winkelmann and Ditto (1964) and by Wilkinson (1965) in patients with leucocytoclastic angiitis and by Ramsay and Fry (1969) in patients with allergic vasculitis. Although the distribution of the rash in adults is similar to that seen in paediatric cases certain differences are apparent when the adults in this series are compared with the children described by Gairdner (1948), Bywaters, Isdale, and Kempton (1957) and Allen, Diamond, and Howell (1960). In the adults it was common for the purpura to appear without any preceding lesion or in erythematous macules which were never raised, whereas in children the lesions usually progressed slowly from pink maculopapules or urticaria to flat purpuric spots. Blistered, necrotic, or ulcerated lesions, which were present in 16 per cent of the adults, were uncommon in children and are mentioned as an occasional feature only (Bywaters, Isdale, and Kempton, 1957; Derham and Rogerson, 1956; Bilaloglu, 1963). Allen, Diamond, and Howell (1960) noted that symptoms persisted for longer than a month in only one-third of their children with Schonlein-Henoch purpura. About 40 per cent of their cases had one or more recurrences—usually of the rash and of gastrointestinal symptoms. In some cases symptoms may persist longer and Burke, Mills, and Stickler (1960), reviewing 88 cases of SchonleinHenoch purpura in children followed up by questionnaire, stated that purpura continued in cases with nephritis on average for 6-8 months and in those without nephritis for 4-6 months. In the present series of adults the rash had cleared SCHONLEIN-HENOCH PURPURA IN THE ADULT 475 Downloaded from by guest on September 12, 2016 completely within six weeks in the majority of cases, and we could find no correlation between either the severity, the duration, or the extent of the skin involvement and the prevalence or severity of systemic involvement. A few patients in this series had cutaneous disease only, but the skin lesions were in no way distinguishable clinically or histologically from those in patients with systemic disease, and systemic features later appeared in several patients whose disease had been confined for several years to the skin. In 20 patients, crops of rash continued to appear for a year or more. Recurrence of the rash over long periods was noted in a few cases by Winkelmann and Ditto (1964) and by Ramsay and Fry (1969) and seems, therefore, to be a feature of some adult cases. I t was amongst the 20 cases with chronic recurrent skin disease that we found six with manifestations that are unusual in Schonlein-Henoch purpura and more suggestive of other disease, but in only one was a definitive diagnosis made of systemic lupus erythematosus. Besides these six, there were several in this group who were thought because of their recurrent purpura to have, for instance, WaldenstrDm's macroglobulinaemia or systemic lupus erythematosus and received treatment for them before these diagnoses were discarded. We feel, however, that all 77 patients were fairly diagnosed as having had the clinical syndrome of Schonlein-Henoch purpura. Winkelmann and Ditto (1964) had also noted unusual features in some of their patients with allergic vasculitis, such as mononeuritis multiplex, peripheral neuropathy, and segmental myelitis. It is clear that in adults the spectrum of disease is wider than in children. Localized oedema, especially of the hands, feet, face, and scalp, is well recognized as a feature of Schonlein-Henoch purpura in children, and was present in two-thirds of the 131 patients reported by Allen, Diamond, and Howell (1960). Bywaters, Isdale, and Kempton (1957) sampled the oedema fluid in one of their patients and found a high protein content (5-6 g per 100 ml) suggestive of an inflammatory origin. Winkelmann and Ditto (1964) noted dependent oedema, which was sometimes painful, at the onset, or during exacerbation of the disease, in 18 of their 38 adults. In the present series localized oedema, usually of the dependent parts, was a feature in 44 patients and it seems probable that this was either wholly or in part due to the cutaneous vasculitis. Over 80 per cent of our patients developed systemic involvement and in most of them the skin was apparently the first organ affected, although symptoms and signs of internal involvement could precede the rash by as long as 28 days. Similar observations were reported in children by Allen, Diamond, and Howell (1960) and in adults by Winkelmann and Ditto (1964). Joint involvement in the adult is similar to that seen in childhood. Symptoms were often relatively mild and transient but could on occasions be disabling. Joint involvement occurred in about 60 per cent of the paediatric cases and in 55 per cent of the present group of adults. The frequency of gastrointestinal involvement in the paediatric series of Schonlein-Henoch purpura varies from 29 per cent (Sterky and Thilen, 1960) to 69 per cent (Allen, Diamond, and Howell, 1960) and was 44 per cent in the present series of adult cases. In children with gastrointestinal symptoms, 476 J. J. CREAM, J. M. GUMPEL, AND R. D. G. PEACHEY Downloaded from by guest on September 12, 2016 abdominal pain was the most frequent manifestation in over 80 per cent, gross melaena occurred in over 50 per cent, minor blood loss in another 27 per cent, while vomiting was common and haematemesis occurred in about 10 per cent (Allen, Diamond, and Howell, 1960). Our adults were very similar. In children surgery has occasionally been undertaken before the diagnosis has become apparent as gastrointestinal symptoms may precede the rash (Feldt and Stickler, 1962). This is a hazard to which adults may also be exposed and indeed in this series six patients presented with gastrointestinal manifestations. Intussusception is a well recognized complication of SchOnlein-Henoch purpura in children (Wolfsohn, 1947) and may also occur rarely in adults (Emanuel, Lieberman, and Rosen, 1962) but did not occur in any of our patients. In cases submitted to laparotomy, localized areas of oedema and haemorrhage involving the bowel wall have been found and in rare instances perforation has been reported (Lindenauer and Tank, 1966). Objective evidence of protein-losing enteropathy was presented by Jones, Creamer, and Gimlette (1966) in five patients who are also included in this study, and is certainly more common than is immediately obvious. Pulmonary manifestations have usually only been noted at post-mortem, when peri-arteriolar infiltrates andfibrinoidnecrosis have been found (Lecutier, 1952; Norkin and Wiener, 1960). Jacome (1967) described a patient who had haemoptysis, moderate dyspnoea, and multiple areas of consolidation, but without evidence of cardiac failure. At post-mortem very extensive intra-alveolar haemorrhage was found, with widespread arteriolitis elsewhere. The transient nature of the infiltrates in our patients would fit in well with intra-pulmonary haemorrhage, and it is quite probable that these four patients had pulmonary vasculitis. Neurological involvement has been described although much of this, transient hemiplegia (Osier, 1914), convulsions (Lewis and Philpott, 1956), and subarachnoid haemorrhage (Green, 1946) may have been related to hypertensive phenomena. The main forms of renal disease: abnormalities of the urinary sediment, acute nephritis, and slowly progressive renal damage, are well known to occur in children with Schonlein-Henoch purpura. It has long been felt that renal disease in children is more common in older than in younger children (Burke, Mills, and Stickler, 1960; Allen, Diamond, and Howell, 1960) and that the renal disease in adults is more serious and of worse prognosis than in children (Berlyne, 1967), but the evidence for this is scanty (Levitt and Burbank, 1953; McCombs, 1965). In the series of Allen, Diamond, and Howell (1960), there were two deaths (1*5 per cent) from renal disease, 10 and 11 months after onset, while in the series of Burke, Mills, and Stickler (1960) two deaths occurred between one and five years after onset and two more after five years (4-5 per cent). One child (2 per cent) died within a week of onset in the 46 children reported by Bywaters, Isdale, and Kempton (1957). The prevalence (49 per cent) and the mortality (4 per cent) of renal disease in our cases was thus comparable to that found in several paediatric series. SCHONLEEST-HENOCH PURPURA IN THE ADULT 477 ii Downloaded from by guest on September 12, 2016 The patterns of renal disease in our group were very similar to those in children, well described by Heptinstall (1966). We were impressed by the way in which renal disease could occur suddenly late in the course of an acute attack or could be insidious with a slow progressive deterioration of renal function. As has been the experience of others, renal function could be surprisingly little impaired in patients after long periods of persistently active and serious renal disease. The histological features have recently been reviewed by Heptinstall (1966) and by Berlyne (1967). The early and milder forms are characterized by a focal glomerulonephritis while in the florid and progressive forms glomeruli are uniformly involved with crescent formation and there is a necrotizing angiitis of the interlobular arteries and afferent arterioles. In chronic disease with uraemia hyalinization of glomeruli occurs. The widespread multifocal vasculitis found in Schonlein-Henoch purpura resembles an animal model of vasculitis, that of experimental serum sickness— a circulating immune complex disease. In this model antigen, antibody, and complement can be detected, by immunofluorescent techniques, in the affected vessels (Dixon, Vazquez, Weigle, and Cochrane, 1958), and in the glomeruli where there is a characteristic appearance—discrete, irregular lumpy deposits along the outer aspect of the basement membrane beneath the epithelial cells (Andres, Seegal, Hsu, Rothenberg, and Chapeau, 1963). In addition the serum complement level is low. These histological and serum complement changes have been observed in man in systemic lupus erythematosus (Koffler, Schur, and Kunkel, 1967), and in acute post-streptococcal nephritis (Andres, Accinni, Hsu, Zabriskie, and Seegal, 1966). It has been suggested that Schonlein-Henoch purpura may be another example of a circulating immune complex disease and confirmatory evidence has been provided by Stringa, Bianchi, Casala, and Bianchi (1967) who demonstrated gammaglobulin and complement in skin vessels in allergic vasculitis, although Miescher, Paronetto, and Koffler (1965) failed to find such deposits and the serum complement levels in anaphylactoid purpura are normal (Ayoub and Hoyer, 1969). The renal histopathology in anaphylactoid purpura may be indistinguishable from that in systemic lupus erythematosus (Heptinstall, 1966) but using immunofluorescence and electron microscopy, Urizar, Michael, Sisson, and Vernier (1968) found granular deposits of gammaglobulin and complement predominantly in the glomerular mesangium in anaphylactoid purpura. These appearances were quite different from those in systemic lupus erythematosus, post-streptococcal nephritis, or experimental serum sickness and also did not resemble the appearances in Goodpasture's syndrome (Duncan, Drummond, Michael, and Vernier, 1965). However, Feizi and Gitlin (1969) demonstrated the constituents of a circulating cryoglobulin, IgM and IgG, and complement deposited in the renal glomeruli in one patient included in this series. Both the clinical and also the histological classification of these patients presents a problem. The clinical picture depends on the extent and site of the small-vessel involvement and the histological appearances may depend on such variables as the age of the lesion and the cut of the section. It is also apparent 478 J. J. CREAM, J. M. GUMPEL, AND R. D. G. PEACHEY that thefindingsin a given patient may vary from site to site if multiple simultaneous biopsies are obtained. In our patients, no particular form of rash could be picked out as being especially prone to occur without systemic involvement and we feel there is little to be gained at present by attempting to subdivide and classify what is probably a spectrum of disease on the basis of minor clinical and histological appearances. Any rational classification of this group of patients must await a clear understanding of the aetiology andpathogenesisof vasculitis. We are indebted to Dr. H. J. Wallace and Dr. N. F. Jones for stimulating our interest in different aspects of this study and for their continued interest and advice, and to Dr. G. C. Wells and Dr. I. W. Whimster for helpful criticism. Our thanks are also due to the Physicians of St. Thomas' Hospital and St. John's Hospital for Diseases of the Skin who have allowed us to include their patients, and to those in other hospitals who have supplied further details of these patients. We thank Mrs. Jean Garnet for her help with the manuscript. Downloaded from by guest on September 12, 2016 Summary The case histories of 77 adult patients with crops of purpura of SchOnleinHenoch type were reviewed. Thirty-four of these patients were seen and examined by us at varying intervals after the onset of disease. In the majority of cases the aetiology of the condition was uncertain. Thirtytwo patients had taken medicinal preparations in the three weeks prior to the first manifestation, but in only one patient was there good evidence of a causal relationship—with a thiazide diuretic. Evidence of streptococcal infection was found in 17 patients, and the significance of this finding is discussed. Although cases with the typical cutaneous manifestations of childhood Schonlein-Henoch purpura were seen, it was more common for the purpura to appear in erythematous macules, which were never raised, or without any preceding skin lesion. Skin necrosis was more frequently seen than in childhood. Localized oedema, especially of the lower legs, was common and probably attributable to the vasculitis in many cases. The rash in adults, as in children, affected predominantly the lower extremities, and tended to occur in shortlived crops, which ceased completely in a few weeks in most patients. In a group of 20 adults however, crops of purpura continued to appear for a year or more, and subsequently six were found at follow-up to have developed unusual features, or evidence of other disease. Systemic involvement occurred in over 80 per cent of patients, and was similar in general to that seen in children. Joint symptoms were usually short lived, and occurred in 55 per cent of patients. Gastro-intestinal involvement occurred in 44 per cent with abdominal pain and overt or occult blood loss as the most frequent manifestation. Haemoptysis or pulmonary lesions occurred in 6-5 per cent. Renal disease was present in 49 per cent, and presented as an acute nephritic syndrome in 19 patients, as slowly progressive renal disease in three patients, and as a urinary abnormality by itself with no impairment of renal function or evidence of acute nephritis in 16 patients. SCHONLEIN-HENOCH PURPURA IN THE ADULT 479 The confusion of terminology and classification in the literature concerning this group of patients is discussed. It is our opinion that there is little to be gained by attempting to subdivide what is probably a spectrum of disease on the basis of arbitrary minor clinical and histological criteria, and we believe any further classification should await a clearer understanding of aetiology and pathogenesis. APPENDIX Downloaded from by guest on September 12, 2016 Illustrative Case Histories Case No. 42. Schonlein-Henoch purpura with severe gastrointestinal disease and nephritis At age 33, in 1951, this young woman developed ankylosing spondylitis and was treated with codeine compound, aspirin and phenylbutazone, but the latter drug was stopped after six weeks because of buccal ulceration. She had been treated since childhood with phenobarbitone for petit mal. In 1956 she began to have attacks of abdominal colic which lasted for a few hours on each occasion and occurred every few weeks. There was no vomiting or diarrhoea. In 1961 she developed a purpuric rash on her legs, together with severe colicky abdominal pain, vomiting, and constipation. She was admitted to a hospital where her abdomen was noted to be distended and tender in the right iliac fossa. At laparotomy some free fluid was present in the abdominal cavity but no other abnormality was noted and the appendix, which was normal, was removed. Four days later she was again vomiting, her abdomen was distended, and bowel sounds were absent. A diagnosis of small-bowel obstruction was made and a second laparotomy was performed. On this occasion several areas of the lower ileum were found to be hyperaemic with a red and oedematous wall and thickening of the adjacent mesentery. This was thought at the time to be Crohn's disease but the terminal ileum was spared and this diagnosis did not fit with the purpuric rash. Following the second operation the patient developed gross oedema and at this time albumin, red cells, and casts were noted in her urine. She was transferred to St. Thomas' Hospital where she was found to be extremely oedematous with fading purpura on her legs, and to have tenderness and guarding all over her abdomen. Over the course of the next two months attacks of colicky abdominal pain recurred with abdominal distension, absent bowel sounds, and occasional diarrhoea, and fresh crops of purpura appeared on her legs. The proteinuria increased up to 20 g a day and a clinical diagnosis of SchOnlein-Henoch purpura was made. Occult loss of blood was frequently found in the stools. The plasma albumin level fell to 20 g/100 ml. In view of the severe illness and the renal involvement she was started on prednisone 60 mg daily, with a marked improvement in the haematuria, proteinuria, and purpura. She continued, however, to have attacks of abdominal colic and two months after admission developed severe right-sided abdominal pain with pain in the right shoulder. At this stage she also developed attacks of intense pleuritic pain, involving one or both sides of the chest, with areas of patchy consolidation shown on X-ray. There was a marked positive release sign in the right hypochondrium and a third laparotomy was performed. A stricture of the small bowel with numerous surrounding fibrinous adhesions was found and excised. Examination of the excised specimen showed mucosal ulceration with fibrosis beneath the ulcer. The mucous membrane adjacent to the ulcer showed chronic 480 J. J. CREAM, J. M. GUMPEL, AND R. D. G. PEACHEY inflammatory cell infiltration. The patient made an uneventful post-operative recovery with no further abdominal symptoms. The dose of prednisone was gradually tailed off and the plasma proteins returned to normal. No certain cause for the small-bowel ulcer was established and in particular the patient had not received slow-release potassium preparations such as have been known to produce small-bowel ulceration. Case No. 57. Acute nephritis with a nephrotic phase; active disease for over six months; recurrent pulmonary infiltrate with pleurisy Case No. 72. Recurrent attacks of Schonlein-Henoch purpura over 17 years Since the age of 17 this 34-year-old man has had recurrent attacks of purpura on the buttocks and lower limbs, associated with pain and swelling in his joints. In addition, at least twice a year after sore throats and colds, he has had more severe episodes, with confluent purpuric lesions up to six inches across on the buttocks and legs and occasionally on the trunk, arms, and face. With these Downloaded from by guest on September 12, 2016 Ten weeks after a sore throat treated with tetracycline, this 22-year-old man developed a purpuric rash on the hands, buttocks, legs, and feet, and noted arthralgia of the ankles, knees, and elbows. He had abdominal cramps and nausea, and dark urine. On admission to St. John's Hospital the urine was 'smoky', with heavy proteinuria and granular casts were seen Over the next days the urine output dropped to 400 ml/24 hours, and the blood-urea level rose from 28 mg/100 ml to 52 mg/100 ml. Because of his renal disease, he was transferred to another hospital. During the two months of his admission heavy proteinuria persisted with recurrent haematuria and cylindriuria as well as fresh crops of purpura associated with episodes of joint and abdominal pains and gastrointestinal bleeding. He was therefore treated with prednisone, but because of an increase in the blood-pressure this was stopped. Despite a low-protein diet, the blood-urea remained slightly raised. Just before discharge from hospital he was re-started on prednisone 15 mg daily to prevent a relapse of his renal disease. Two weeks after discharge he had a further relapse and was admitted to another hospital. At this time the blood-pressure ranged from 160/120 to 140/ 100 mmHg, red cells and casts were regularly found in his urine, the blood-urea level varied from 40 to 70 mg/100 ml, the serum albumen was maintained at 3-4 g/100 ml, and the urinary protein loss was 12 g/24 hours. Rheumatoid factor tests and an immuno-fluorescent A.N.F. test were negative. His prednisone dose was increased to 60 mg/day for six weeks, and over this time proteinuria varied from 5 to 12 g/24 hours and the blood-urea from 40 to 65 mg/100 ml. The prednisone was not immediately effective and was reduced to 15 mg/day and azathioprine 100 mg daily started. At this stage the blood-urea and proteinuria gradually diminished. The creatinine clearance had always remained at normal levels. Some five months after onset he developed severe recurrent bilateral pleural pain with bilateral friction rubs and pulmonary opacities were noted on the radiographs (see Plates, 36 to 38, Figs. 3 to 7). These cleared and recurred over several weeks. No bacterial or embolic cause was shown. One year after stopping treatment, 20 months after onset, he was well with a normal blood-pressure, a blood-urea level of 28 mg/100 ml, and a 24-hour protein loss of only 180 mg. When seen four years after onset he was well and had had no recurrence, and no abnormality was found on examination. The bloodurea and creatinine clearance were normal, but numerous red cells and casts were present in the urine, which contained 2-5 g protein in a 24-hour collection. SCHONLEIN-HENOCH PURPURA IN THE ADULT 481 severe attacks he has had episodes of abdominal pain, melaena, and a severe arthritis affecting the metacarpo-phalangeal joints, wrists, elbows, knees, and metatarso-phalangeal joints. In the past these attacks had been variously diagnosed as rheumatic fever and gout. They have continued unchanged for 17 years and a skin biopsy in 1968 showed a typical vasculitis. In one such attack Haemophilia influenzae was cultured from the throat, and the ASO titre was normal. On two occasions, the Rose-Waaler test was positive to a titre of 1/64. Case No. 56. Slowly progressive renal failure, without an initial nephritic episode A 17-year-old Anglo-Indian boy was seen with purpura and raised urticarial lesions. At that time he had moderate proteinuria and red cells in the urine. The blood-urea and plasma protein levels were normal. The proteinuria increased with persistent red cells and casts, and within six months the blood-urea was up to 87 mg/100 ml and the serum albumen reduced at 2-3 g/100 ml. A renal biopsy showed focal proliferative changes. Despite the use of steroids, the renal disease continued unchecked. Within 30 months of onset he died of renal failure. At autopsy most of the renal glomeruli appeared destroyed, with endothelial proliferation, crescent formation, and hyahnization of the remainder. Case No. 74. Schonlein-Henoch purpura, chronic hepatitis, and cryoglobulinaemia complicated by the late development of immune-complex nephritis This case has been reported in detail by Peizi and Gitlin (1969), and is therefore only described briefly here. When first seen in 1967 this 22-year-old man Downloaded from by guest on September 12, 2016 Case No. 67. Renal tubular acidosis, juxta-glomerular apparatus hyperplasia, interstitial nephritis, and renal wastage of potassium in a patient with recurrent purpura, arthritis, gastrointestinal disease, and a widespread arteritis This 40-year-old woman was referred to St. Thomas' Hospital with a threeyear history of intermittent purpura, arthritis, and two episodes of gastrointestinal bleeding which had required transfusion. She had a persistent low grade fever and neutropenia, an E.S.B. of 100 mm/hr, and hypergammaglobulinaemia. A plasma potassium of 2-0 mEq/1 led to the diagnosis of renal tubular acidosis and renal potassium wastage. There was, however, no proteinuria or haematuria and L.E. cells, antinuclear factor, and rheumatoid factor were not found. Skin biopsy showed a severe vasculitis, and a percutaneous renal biopsy showed an interstitial nephritis with prominent juxta-glomerular apparatus. The juxtaglomerular cells contained many granules and there was also tubular atrophy. An exploratory laparotomy showed no obvious abnormality apart from cholelithiasis but histological examination of biopsy material showed widespread arteritis with a fibrinoid necrosis in the gall bladder, liver, and kidney. She has since remained well on small doses of prednisone, now discontinued, and potassium supplements. A possible disease mechanism in this patient is of renal tubular acidosis supervening on long-standing hyperglobulinaemia and vasculitis (Jones, Barraclough, and Prunty, 1969). Such widespread vasculitis is uncommon in Schonlein-Henoch purpura, but of the other possibilities the persistently negative anti-nuclear factor makes systemic lupus erythematosus unlikely, and the clinical features and long subsequent course would be most unusual for such widespread vasculitis occuring in polyarteritis nodosa. 482 J. J. CREAM, J. M. GUMPEL, AND R. D. G. PEACHEY gave a four-year history of recurrent purpura, principally on the legs. A skin biopsy showed intense haemorrhagic vasculitis. At that time he was found to have an enlarged liver and abnormal liver function tests, a liver biopsy showed chronic hepatitis not typical of active chronic hepatitis, and he was referred to Professor S. Sherlock. Repeated L.E. cell tests were negative, but antinuclear antibodies were found in a titre of 1:10, and rheumatoid factor was also present. A cryoglobulin was found in the serum. Urinalysis and renal function were repeatedly normal. Five years after the onset of his disease the patient was readmitted to the Royal Free Hospital with left ventricular failure, hypertension, and oliguric renal failure occurring after he had slept out in the open in extremely cold weather. A renal biopsy showed hypercellular glomeruli and variable thickening of the basement membrane. Both IgG and IgM, reflecting the composition of the cryoprecipitate, were found in quantity in the renal glomeruli. Subsequent to the renal disease, he has had persistent and heavy proteinuria up to 2-6 g per day, haematuria, persistent hypertension requiring hypotensive treatment, and a blood-urea reducing from 180 mg/100 ml to 45 mg/100 ml. After an initial satisfactory response to prednisone 60 mg per day, his condition worsened, but the introduction of azathioprine enabled the prednisone to be cut to 10 mg per day. He has, however, continued to have recurrent attacks of purpura on the legs, and the renal lesion is still active over 18 months later. At the age of 30 this woman in 1956 started to have attacks of purpura on the legs. She was admitted to St. Thomas' Hospital in 1962 and was noted to have an E.S.R. of 42 mm in the first hour and hypergammaglobulinaemia. L.E. cells were not found. No definite diagnosis was made despite repeated investigation and she continued to have recurrent purpura. In 1968, she developed a symmetrical polyarthritis. 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J. 1, 656. Sterky, G., and Thilen, A. (1960) Acta paediat. (Uppsala), 49, 217. Stringa, S. G., Bianchi, C, Casala, A. M., and Bianchi, O. (1967) Arch. ital. Derm. 95, 23. Symmer8, W. St. C. (1958). A symposium organized by the Council for International Organisations of Medical Sciences, ed. M. L. Rosenheim and R. Moulton. Oxford and Edinburgh. Urizar, R. E., Michael, A., Sisson, S., and Vernier, R. L. (1968) Lab. Invest. 19, 437. Vernier, R. L., Worthen, H. G., Peterson, R. D., Colle, E., and Good, R. A. (1961) Pediatrics, 27, 181. 484 J. J. CREAM, J. M. GUMPEL, AND R. D. G. PEACHEY Wedgwood, R. J. P., and Klaus, M. H. (1955) Pediatrics, 16, 196. Wilkinson, D. S. (1965) Brit. J. Derm. 77, 186. Winkelmann, R. K. (1958) Proc. Mayo Clin. 33, 277. and Ditto, W. B. (1964) Medicine (Baltimore), 43, 59. Wolfsohn, H. (1947) Arch. Dis. Childh. 22, 242. Downloaded from by guest on September 12, 2016 New Series, Vol. XXXIX, PI. 36 FIG. 4. Radiograph on July 4, 1966. 3-7. A series of chest radiographs taken at two-week intervals to show the rapidly changing sequence of pulmonary and pleural changes (Case no. 57). FIGS. Downloaded from by guest on September 12, 2016 FIG. 3. Radiograph on June 20, 1966. Quarterly Journal of Medicine New Series, Vol. XXXIX, FIG. 6. Radiograph on July 25, 1966. Downloaded from by guest on September 12, 2016 ~Eia. 5. Radiograph on July 18, 1966. PL 37 New Series, Vol. XXXIX, PI. 38 Downloaded from by guest on September 12, 2016 FIG. 7. Radiograph on August 9, 1966. Downloaded from by guest on September 12, 2016