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The World of
Dermatology
Objectives
 Cite the advances in management as they relate to screening, diagnosis, and therapy
 Identify the optimal techniques in therapy with skin malignancies
 Assess how new data and therapeutic techniques can be incorporated in the individualized treatment
Johnnie M Woodson, M.D., F.A.A.D.
Assistant Professor of Dermatology
University of Nevada School of Medicine
Director of J. Woodson Dermatology & Associates, LTD
of patients
 Review medical and surgical options for the management of skin diseases
 Describe the pathophysiology of immune-mediated chronic inflammatory diseases
 Outline the benefits and limitations of new and emerging immunosuppressive, anti-inflammatory, and

disease-modifying treatments for immune-mediated chronic inflammatory diseases
Johnnie M Woodson, M.D.
Can You Identify This Condition?
Johnnie M Woodson, M.D.
Scabies
Johnnie M Woodson, M.D.
Can You Identify This Condition?

Sarcoptes scabiei var hominis

Eight legged mites, ovoid flat body, 100 eggs per day

Intensely pruritic erythematous papules and burrows on finger\toe, web spaces, nipples, axilla, male genitalia
and umbilicus

Mineral oil preparation skin scrapings show mites, eggs or feces

Crusted scabies, immunocompromised host such as elderly, HIV or transplant patients

Can be treated with permethrin and crotamiton
•
Can You Identify This Condition?
30 day cycle on human host
Johnnie M Woodson, M.D.
Actinic keratosis

UV damage leads to p53 mutation

Transformation to squamous cell carcinoma .025% to 16%

Atypical keratinocytes, pleomorphic and disorganized
Johnnie M Woodson, M.D.
Can You Identify This Condition?
Johnnie M Woodson, M.D.
Johnnie M Woodson, M.D.
Can You Identify This Condition?
Keratoacanthoma

Dome-shaped firm crater lesion, rapid growth, follicular origin

Controversy-nine or less aggressive malignancy associated with immunosuppression and
systemic lupus erythematosus

Excision, topical 5-FU, cryo- surgery, Mohs surgery
Johnnie M Woodson, M.D.
Johnnie M Woodson, M.D.
Can You Identify This Condition?
Pyoderma Gangrenosum

Four types - Ulcerative, Pustular ,Bullous,Vegetative

Clinical
Inflammatory pustule, ulcerates at sites of trauma (pathergy), distinct rolled edges, painful ulcer,
40-60 years old lower extremities and trunk
•

Inflammatory bowel disease association, leukemia possible association, 1.5-5% with inflammatory
bowel disease develops

Associations - leukemia, polycythemia, chronic active hepatitis, HCV, HIV, SLE, pregnancy

Treat for underlying condition, compresses with ointment occlusive dressings, potent topical steroids or
intralesional, tacrolimus, systemic steroids, dapsone, sulfasalazine, cyclosporine, infliximab, SSKI,
Johnnie M Woodson, M.D.
Johnnie M Woodson, M.D.
Can You Identify This Condition?
Erythema Nodosum


Clinical
•
Red, tender nodules, anterior shin's, size, lower extremities and upper extremities
•
Onset fever, chills, malaise, leukocytosis, arthropathy
•
Immunologic reaction triggered, medications, benign and malignant systemic illness, bacterial, viral , fungal
infections
Infections
•
Streptococcal, tuberculosis, Yersinia, coccidioidiomycosis, histoplasmosis, dermatophytes
•
Acute respiratory illness, viruses, infectious mononucleosis, cat scratch disease, hepatitis B, sarcoidosis
•
Sulfonamides,bromides,oral contraceptives
•
Enteropathies,ulcerative colitis, Crohn's disease, malignancies lymphoma, leukemia, cervical cancer
•
Spontaneous resolution 3 to 6 weeks, nonsteroidal anti-inflammatory's, systemic steroids, potassium iodide
400-900 mg Q day
Johnnie M Woodson, M.D.
Johnnie M Woodson, M.D.
Cutaneous T-cell lymphoma
(Mycosis Fungoides)
Can You Identify This Condition?

Clinical Types
•

Flat and raised lesions, pruritus, females, epidermotropism, increased mucin in follicles, tumor
stage poor prognosis

Diagnoses
•
Johnnie M Woodson, M.D.
Patch and plaque stage, hypopigmented type, pigmented purpura, alopecia mucinosa,
erythrodermas, tumor stage, granulomatous and slack skin, pagetoid reticulosis
Biopsy at three month intervals, clonality assists, malignant clonal T cell
populations(CD4+/CD7-),CD4/CD8 ratio expansion into blood, memory cell marker
CD45RO elevation peripheral blood involvement
Johnnie M Woodson, M.D.
Cutaneous T-cell lymphoma
(Mycosis Fungoides)
Can You Identify This Condition?

Sezary Cells - enlarged hyper convoluted nuclei, activated T cells, 100 cells counted to assess
percentage, greater than 5% poor prognosis

Pognosis - 10% or less median survival 12 years, tumors no involvement median survival 2-3
years

Treatment - dapsone or sulfa pyridine, intralesional and topical high potency steroids
Johnnie M Woodson, M.D.
Molluscum Contagiosum
Johnnie M Woodson, M.D.
Can You Identify This Condition?

Poxvirus, MCV-1 to 4, small children MCV-1, HIV-associated MCV-2

Young children, sexually active adults, immunosuppressed persons, skin to skin contact, swimming
pools

Smooth surface, firm, dome shaped pearly papules with umbilication

Spontaneous resolution, light cryotherapy, topical tretinoin, topical cantharidin 4-6 hours,
trichloroacidic acid 35-100%
Johnnie M Woodson, M.D.
Nevoid basal cell carcinoma syndrome
(Gorlin syndrome)

AD, patched gene (inhibits hedgehog signaling pathway)

Decreased patched therefore increased smoothened gene therefore uncontrolled cell proliferation

Frontal bossing, bifid ribs, calcification of falx cerebri, multiple basal cell carcinoma's, palmoplantar
pits, painful odontogenic jaw cysts, medulloblastoma, hypertelorism and ovarian fibromas
Johnnie M Woodson, M.D.
Squamous Cell Carcinoma
Johnnie M Woodson, M.D.
Can You Identify This Condition?
Johnnie M Woodson, M.D.
Can You Identify This Condition?

UVB-Related, increasing age, let it to decline, skin types I and II, immunosuppression, chemical
carcinogens

P 53 mutations, human papilloma virus 6,11,16,5,8

Metastatic rate 0.3 to 16%, risk increases with location on lips ears eyelids genital area, depth of
invasion perineural spread immunosuppression recurrence

Mohs surgery, excision, nonsurgical cryo- treatment, radiation
Johnnie M Woodson, M.D.
Johnnie M Woodson, M.D.
Bowen’s Disease

Full thickness keratinocyte atypia

Transformation to SCC 5%
Can You Identify This Condition?
Johnnie M Woodson, M.D.
Johnnie M Woodson, M.D.
Can You Identify This Condition?
Can You Identify This Condition?
Johnnie M Woodson, M.D.
Johnnie M Woodson, M.D.
Can You Identify This Condition?
Malignant Melanoma

Lifetime risk 1 in 60 to 1 in 80, 20-45 years old, chest, upper extremities man, back, lower legs,
lower extremities women

CDKN2A(aka MST-1 or p16) mutation

Skin, lymph nodes, lungs, liver, brain, G.I. track metastatic sites

Excision, since you know node biopsy if greater than 1 mm, interferon-alpha

Surgical margins-less than 1 mm-1 cm, greater than 2 mm-2 cm
Johnnie M Woodson, M.D.
Malignant Melanoma
Johnnie M Woodson, M.D.
Identify This Unknown!

Sentinel node biopsy - greater than 1 mm or less than 1 mm with ulceration

New biologic therapy's, interferon alpha

Prognosis - Breslow depth for primary lesion, ulceration second most important, sentinel node
most important predictor for overall survival

Poor prognosis - head and neck, increased number of nodes, metastasis visceral, increasing age,
male, acral lentiginous type
Johnnie M Woodson, M.D.
Johnnie M Woodson, M.D.
Arsenical Keratosis
Identify This Unknown!
Johnnie M Woodson, M.D.
Erythrasma
Johnnie M Woodson, M.D.
Identify This Unknown!
Johnnie M Woodson, M.D.
Secondary Syphilis
Johnnie M Woodson, M.D.
Identify This Unknown!
Johnnie M Woodson, M.D.
Dental Fistula
Johnnie M Woodson, M.D.
Identify This Unknown!
Johnnie M Woodson, M.D.
Johnnie M Woodson, M.D.
Black Heel (Tinea Pedis)
Identify This Unknown!
Johnnie M Woodson, M.D.
Johnnie M Woodson, M.D.
Kaposi's Sarcoma (AIDS related)
Summary
 Identified common dermatologic conditions
 Addressed medical and surgical options for the management of skin diseases
 Described how new data and therapeutic techniques can be incorporated in the individualized
treatment of patients
 Described the pathophysiology of immune-mediated chronic inflammatory diseases
 Outlined the benefits and limitations of new and emerging immunosuppressive, anti-inflammatory,
and disease-modifying treatments for immune-mediated chronic inflammatory diseases
Johnnie M Woodson, M.D.
Johnnie M Woodson, M.D.