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Tumors of Urinary system Hao Zeng, M.D. Department of Urology West China Hospital Types of tumors in urinary system Urothelial cancer of Bladder Renal cancer Prostate cancer Testicular cancer Penile cancer Estimated new malignant cases in North America(2013) Estimated mortality of malignant cases in North America(2013) Prevalence of urological tumors in developing countries (China) Urothelial cancer of Bladder Renal cancer Prostate cancer Urothelial Carcinoma (Transitional cell carcinoma) Definition of Urothelial Carcinoma The epithelium of urinary tract is referred as urothelium or transitional epithelium. The pelvis of the kidney, ureters, bladder, and urethra are lined by this kind of epithelium Therefore, the same type of cancers seen in either one of the above organ can also occur in the other sites. (Multi-locus origination) Location Urothelial Carcinoma of the Bladder Compromises 90+% of all bladder cancers Other urothelial malignancies of the bladder include: adenocarcinoma squamous carcinoma urachal carcinoma Non-Urothelial Tumors in the Bladder Small cell carcinoma Sarcomas (typically leiomyosarcoma) Lymphomas Pheochromocytoma Carcinosarcoma Metastatic tumors Incidence 68,810 new cases diagnosed in 2010 in USA The 4th most common cancer in men The 11th most common cancer in women 260,000 new cases diagnosed annually worldwide 120,000 deaths worldwide each year Demographics Gender: Male to Female ratio = 3.5:1 Age: Rates in those aged 70 years and older are approximately 2 to 3 times higher than those aged 55-69 years, about 15 to 20 times higher than those aged 30-54 years Risk Factors for Bladder TCC Age (peak in 7th decade) Incidence in those 70 years and older are approximately two to three times higher than those aged 55-69 years, and about 15 to 20 times higher than those aged 30-54 years Occupational exposures Amines and aniline dyes Dye workers, rubber workers, leather workers, truck drivers, painters, and aluminum workers Risk Factors for Bladder TCC Cigarette Smoking 50% of these cancers in men and 30% in women are due to smoking Phenacetin abuse Cyclophosphamide treatment transplant immunosuppressant Arsenic, Coffee and Artificial sweeteners Prevention of Urothelial carcinoma The greatest prevention strategy is reduction of cigarette smoking Cigarette use increases one's risk for bladder cancer by 2 to 6 times When cigarette smokers quit, their risk declines in two to four years Pathology - Gross Pathology- Microscopic Bladder Anatomy Four layers. Important for staging the cancer. Epithelium: Urothelial mucosa Lamina propria: a layer of connective tissue and blood vessels under the epithelium. Within the lamina propria, there is a thin and often discontinuous layer of smooth muscle called the muscularis mucosae. This superficial layer of smooth muscle is not to be confused with the true muscular layer of the bladder called the muscularis propria or detrusor muscle. Bladder Anatomy Muscularis propria (Detrusor muscle): For purposes of staging bladder cancer, the muscularis propria has been divided into: Superficial muscularis propria (inner half) Deep muscularis propria (outer half). Perivesical soft tissue: This outermost layer consists of fat, fibrous tissue and blood vessels. When the tumor reaches this layer, it is considered out of the bladder Classification of Urothelial carcinoma of bladder Non-invasive: Ta, T1, Tis Invasive: T2-T4 Bladder urothelial carcinoma Stage Non-invasive Ta confined to mucosa T1 Invasion into lamina propria TIS Intraepithelial CIS Non-invasive urothelial carcinoma At initial diagnosis, 70% of patients with bladder cancers have non-invasive disease 70-80% will relapse 4-30% will progress to invasive disease Bladder urothelial carcinoma Stage Invasive T2a T2b T3a T3b T4 Invasion into superficial muscularis propria Invasion into deep muscularis propria Invasion through muscle into perivesical fat in microscope Invasion through muscle into perivesical fat in macroscope Invasion into adjacent organs Invasive Bladder urothelial carcinoma 30% of urothelial carcinomas invade the detrusor muscle (T2-T4) at presentation Highly aggressive May spread by the lymph and blood systems to bone, liver, and lungs Signs and Symptoms Hematuria Flank Pain Gross, Painless, Whole range, Intermittent due to obstruction, pelvic mass, or metastatic disease Irritative voiding symptoms (5-10%) Frequency, urgency, dysuria Diagnosis and Evaluation of Bladder urothelial carcinoma Cystoscopy with Biopsy/Resection send for pathology KUB+IVP CT of abdomen and pelvis - assess lymph nodes Bimanual exam under anesthesia Cytology FISH(Chrom3,7,9,17 mut) Cytoscopy and Biopsy Description of bladder mass: Location Size Shape Base Amount IVP Ultrasonography CT MRI Cytology Normal urothelial cells uniform appearance abundant cytoplasm small nuclei High grade cancer cell Bladder cancer cells are enlarged, with large and dark nuclei P16(红)位点,17染色体着丝粒(绿) 3(绿),7(红)染色体着丝粒 正常人 P16(红)缺失,17染色体多体 3,7染色体多体 患者 Treatment Non-invasive disease Transurethral resection (TUR-Bt) Immediate instillation (within 24h after resection) Routine instillation (every week for 6-8w) Maintenance instillation (every month till 1y) Radical cystectomy is seldom Regular surveillance with cystoscopy (every 3m) Treatment Postoperative intervention drugs Chemotherapy Mitomycin C (most effective) Others include Doxorubicin and thiotepa Intravesical immunotherapy BCG (bacille Calmette- Guerin) improved response with addition of alphainterferon if failed with BCG alone Treatment Invasive disease (Stage T2 or greater) Radical Cystectomy patients will require urinary diversion 50% of patients with muscle invasive TCC will have metastatic disease at diagnosis Cystectomy not curative and additional therapy needed with metastases Neo-adjuvant chemotherapy Adjuvant chemotherapy Treatment Muscle invasive TCC Select patients (Stage T2) may be treated with transurethral resection Partial cystectomy may be an option in select patients with unifocal disease away from the ureteral orifices and bladder floor in whom 2 cm margins are attainable Treatment The role of Chemotherapy Neo-adjuvant chemotherapy Neo-adjuvant chemotherapy showed survival benefit in the treatment of invasive bladder cancer, especially in pts with T2-T3 stage Neo-adjuvant chemotherapy could reduce 16% of death risk in pts with bladder cancer Meta-analysis: improvement of 5-year OS and PFS is 5% and 9%, respectively. Adjuvant chemotherapy The clinical value of adjuvant chemotherapy after surgery is still controversial, due to lack of large scale prospective RCTs. Metastases with Invasive TCC Lymphatic pelvic lymph nodes Hematogenous metastases liver lung bone adrenal gland bowel Metastatic or Unresectable Tumors Platinum-based chemotherapy GC used most commonly MVAC (classic regimen) Radiation therapy Interventional therapy Bio-therapy Enrolled into Clinical Trial Survival Non-invasive (Ta, Tis, T1) 70% at 5 years with TURBt 80% at 5 years with cystectomy Recurrence 66% at 5 years overall 88% at 15 years despite resection 15% with muscle invasive disease BCG decreases recurrence to 17-55% with one 6 week course best for CIS Survival Invasive (T2, T3, T4) Radical cystectomy T2 T3 45-70% at 5 years 35-60% at 5 years Radiation Therapy T1, T2 T3, T4 40% at 5 years 20% at 5 years N1,N2 (nodal metastases) 7% at 5 years 50-70% recurrence rate Progression TCC is a progressive disease Grade 1 Grade 2 Grade 3 10-20% 20-35% 35-65% Surveillance is key Cystoscopy Urinalysis + B ultrasound + cytology Newer approaches in research Renal Cell Carcinoma Epidemiology Responsible for 80-85% of primary renal neoplasms 54,390 newly cases in USA in 2010 The 7th and 9th common malignancies in men and female, respectively Incidence increased gradually over past 30 yrs (23% per year) Approximately 12,000 deaths/year Incidental Findings Incidential Finding: A large number of RCCs now are discovered as an incidental finding due to abdominal CT or ultrasound performed for abdominal pain, trauma, or in the workup for other medical problems In a 1971 review, hematuria, abdominal mass, pain, and weight loss most common presentation. Only 10% were discovered incidentally in the 1970’s, compared to 61% in 1998. 25% metastases at diagnosis Risk factors Risk factors Smoking (2 fold):The longer a person smokes, the higher the risk. Decreased for those who quit. Occupational exposure: Possibly asbestos, cadmium or gasoline exposure (1.4–2 fold) Acquired cystic disease of the kidney (30 fold) ACKD occurs in 35-50% of chronic dialysis (usu after 8-10 yrs of dialysis) Phenacetin: ? No longer sold in the United States Other risk factors - genetic Von Hippel-Lindau disease (1/3 get RCC) Hereditary papillary RCC Autosomal dominant Abnormalities in chromosome 3p Mutated c-met oncogene (chromosome 7p) Tuberous sclerosis (<5%) Autosomal dominant 2 loci have been identified chromosome 9 (TSC1) chromosome 16p (TSC2), near the gene for the most common form of autosomal dominant polycystic kidney disease (PKD1) Pathology 85% of renal cell cancers are adenocarcinomas, 90% of which are of proximal convoluted tubular origin Clear Cell Carcinoma (70-80%) Papillary (10-15%) - slower growing Chromophobe, Sarcomatoid Transitional cell carcinomas - renal pelvis Gross specimen of RCC Description of Renal mass: Location Size Shape Texture, color Multiple Adjacent Presenting Symptoms Classical Triad symptoms 1. Hematuria: Gross or Microscopic 2. Mass: A lump or mass in the kidney area 3. Pain It is uncommon, only present in 10% of patients with RCC If present, strongly suggests metastatic disease Systemic or paraneoplastic symptoms Less common symptoms: Fatigue Loss of appetite Weight loss Recurrent fevers Lethargy Hypertension Anemia Endocrine abnormalities Erythrocytosis (1-5%) Mutate VHL protein – impaired 02 sensing Excess erythropoietin production Excess parathyroid hormone related protein (PTHrP) Hypercalcemia (15%) PTHrP, lytic bone lesions, or excess production of IL-6 can all contribute Presenting signs and symptoms Scrotal varicocele (mostly L sided) – 11% Obstruction of gonadal vein where it enters the renal vein Vena caval / atrial involvement (5-10%) can produce ascites, hepatic dysfunction, et al. Local extension (liver, pancreas, colon) S/Sx of metastatic disease lung, lymph nodes, bone, and liver Brain, ipsilateral adrenal, contralat kidney Evaluation/Workup History Physical Exam Lab Studies urinalysis Radiological Evaluation B-ultrasound, Doppler’s ultrasound KUB + IVP (intravenous pyelogram) CT, MRI History Flank Pain (41%) Hematuria (36%) Weight loss (36%) Flank Mass (24%) HTN (20%) Hypercalcemia (6%) Erythrocytosis (3%) Past Medical History Smoking History Environmental Exposures Asbestos, Cadmium, dyes, benzene Family History ESRD and Hemodialysis Von Hippel Lindau Tuberous Schlerosis Physical Exam Abdominal mass Flank pain Bruit sign Varicocele Hypertension Laboratory Studies Urinalysis Urine culture with sensitivities CBC (anemia) BMP (Cr and Ca++) Radiological Studies Ultrasound KUB + IVP CT scan, MRI RPG (retrograde pyelogram) Angiography Ultrasound can differentiate simple cysts from other lesions with >95% accuracy. If not clearly a cyst CT. D/Dx mainly RCC, hamartoma, xanthogran pyelo IVP CT scan Plain scan Enhanced scan CT scan CT scan: 91% accurate for staging (as compared to stage after surgery) 98% sens, 96% spec for renal vein invasion 83% sens, 88% spec for metastatic LAD 46% sens, 98% spec for perinephric invasion 100% spec for adjacent organ invasion MRI MRI is useful if IVC or atrial involvement suspected and to identify extent of IVC involvement. Retrograde Pyelogram Angiography Renal arteriography- D/Dx Useful if nephron sparing approach planned Metastatic Work-up Chest X-ray CT Abdomen and Pelvis: lymphadenopathy or elevated liver function tests Head/Chest (mental status changes, lung lesions) Bone scan – esp if >T3a or if nodes with bone pain PET scan may be more sens for bony mets Metastatic Work-up Laboratory Tests Liver Function Tests (LFTs) Serum Calcium Sites of metastases include: Lung (69%) Bone (43%) Liver (34%) Lymph Nodes (22%) Adrenal gland(s) (19%) Brain (7%) TNM classification of RCC(2004) TNM classification of RCC(2010) Treatment Radical Nephrectomy Partial Nephrectomy (nephron sparing) Laparoscopic Nephrectomy Target molecule therapy Immunologic Therapy Radiation Chemotherapy Surgical management Stage I (<7cm) or Stage II (>7cm but NSS has been a golden standard for limited to kidney, no nodes or mets) the management of small renal mass partial or radical nephrectomy Partial if Principle: Bilateral tumors Patients with solitary kidney Adequate cancer control with Chronic Renal Insufficient maximal preservation of renal function Small (4cm) or tumor at pole Laparo nephrectomy possible if mass <10cm Less operative morbidity and shorter hosp stays Laparoscopic Nephrectomy Stolzenburg et al. Comparative Assessment of Laparoscopic Single-Site Surgery Instruments to Conventional Laparoscopic Laboratory Setting. J of Endou. 2010;24, Number 2,1–7. RCT for comparison of LESSin with Laparoscopic surgery is now ongoing! White WM, et al. Single-port urological surgery: single-center experience with the first 100 cases. Urology. 2009;74(4):801–4. Surgical management Stage III invasion into adrenal or perinephric region Not beyond Gerota’s fascia Enlarged nodes in abdomen (often inflammatory and not malignant) Renal vein or Inferior Vena Cava invasion Radical nephrectomy If IVC involvement above hepatic veins, technically difficult surgery (often requires C-P bypass) Surgical management Stage IV disease Dissection of regional nodes can provide important prognostic info Extension beyond Gerota’s fascia More than one regional node group Frank metastasis If microscopic node involvement, 50% 5yr OS Cytoreductive nephrectomy should be achieved in patient with stage Ⅳ disease. Adjuvant management of metastatic disease Target molecule therapy Immunotherapy Chemotherapy Radiation therapy Supportive/palliative care Molecular mechanism of RCC Normal condition Carcinogenesis 70-80% RCC occur mutation of VHL gene Shuin, et al. Jpn J Clin Oncol 2006 Mechanism of Target molecule therapy Garcia JA, et al. 2007 Types of target molecules Receptor tyrosine kinase inhibitor mTOR inhibitor Sunitinib, Sorafenib, Axitinib, Panzopanib Tersirolimus, Everolimus VEGF antibody: Bevacizumab Efficacy evaluation of target molecules as first-line therapy in treatment of metastatic RCC Trial (ref.) N Exp. arm Control arm Median PFS Median OS Motzer et al. 2007 750 Sunitinib IFN 11 vs. 5 mo 28 vs. 14 mo Escudier et al. 2007 905 Sorafenib Placebo 5.5 vs. 2.8mo 19.3 vs. 15.9 mo Escudier et al. 2006 189 Sorafenib IFN 5.7 vs. 5.6 mo NA Yang et al. 2003 116 Bevacizumab Placebo 4.8 vs. 2.5 mo NA Hudes et al. 2007 626 Temsirolimus IFN 3.7 vs. 1.9 mo 10.9 vs. 7.3 mo Escudier et al. 2007 649 Bevacizumab plus IFN IFN 10.2 vs. 5.4 mo NA 2010 EAU guideline for advanced RCC 1ST LINE THERAPY Grade A Grade B Sunitinib Temsirolimus For good and intermediate risk pts For poor-risk pts IL-2/IFN Only use in selected pts with a good risk and clear cell histology 2ND LINE THERAPY Grade A Sorafenib 2010 NCCN guideline for advanced RCC Clinical trial Subsequent Therapy Options: Bevacizumab+IFN(1) And after TKI(2A) Pazopanib(1) Sunitinib after cytokine(1) High-dose IL-2 for selected pts And after TKI(2A) Sorafenib for selected pts Temsirolimus after cytokine And Best supportive care Clinical trial (preferred) (2A) and after TKI(2B) Temsirolimus(1 for poor-risk, and High-dose IL-2(2B) First-line Therapy Options: Predominant clear cell histology Relapse or stageⅣ and medically or surgically unresectable disease Sunitinib (Category 1) Progression Clinical trial (preferred) Temsirolimus for poor risk(1) Sorafenib after cytokine(1) 2A for other risk groups) Non-clear cell histology IFN(2B) Low-dose IL-2+IFN(2B) Sorafenib/Sunitinib(2A) Bevacizumab(2B) Pazopanib(3) And best supportive care Chemotherapy(3): Gemcitabine or capecitabine or 5-FU or floxuridne or doxorubicin(in Sarcomatoid only) And best supportive care NCCN version1, 2008 Systemic Therapy – Sunitinib(Case1) Papillary renal cell carcinoma Baseline After 4months Systemic Therapy – Sunitinib(Case2) Baseline After 4months Systemic Therapy – Sunitinib(Case3) Baseline After 4months Immunotherapy-IFN Interferon alpha Approx 15% resp rate Median time to response 4 mo Often short-lived and/or partial responses CR rate less than 1% Largest study to eval long-term outcome (Motzer et al, JCO 2002) Retrospective review of 463 pts on 6 trials Median OS 13 mo 14% 2yr PFS Immunotherapy – IL-2 High-dose IL-2 1992: FDA approval based on 7 phase II trials (255 pts) 600,000 – 720,000 IU/kg q8h up to 14 doses. Repeat q 12 weeks, up to 3 cycles Severe toxicities Need ICU monitoring Selected patients could have good and long response Pathological type: CCRCC Without liver metastasis CAIX overexpression Immunotherapy – IL-2 Selected patients with good and long response Pathological type: CCRCC Without liver metastasis CAIX overexpression 14-20% response rate, 7% CR 23 mo median duration of response 4% toxic death Systemic chemotherapy Single agent Vinblastine: 2.5 – 25% resp rate Floxuridine: 10-20% resp rates in small studies Review of 72 diff regimens (mainly single agent), found resp rate of 5.6% Mostly limited responses, rare to see increased survival Chemotherapy Combination chemoRx Gemcitabine / 5FU (Rini et al, JCO 2000) 17% resp rate PFS 29 weeks Unclear if superior to single agent Rx Overall, RCC is considered chemoRx resistant, and no regimen can be considered standard of care at this time. Reasons for chemo resistance of RCC Proximal tubule cells (source of most RCC), have high expression of P-glycoprotein (Multi Drug Resistant, MDR) mRNA In one study 6/8 RCCs and 4/4 RCC cell lines overexpressed MDR Another study: if 1% or > cells (+) for MDR, PFS 4mo vs 27 mo Attempts to use MDR modifiers like CsA or PSC 833 have so far been unrewarding Palliative / supportive care Pain, bleeding Analgesic medications XRT to sites of painful mets (esp bone mets) XRT for cord compression Angioinfarction (renal art embolization) “Clot colic” No survival benefit but can relieve Sx Ureteral stents hydration HyperCa, fatigue, fever, decr appetite NSAIDs, bisphosphonates, hydration, appetite stimulants Prognostic factors(localized) Size of tumor>7cm Fuhrman grading ≥3 Lymph node(+) With hemorrhage or necrosis within tumor Non-clear cell type Invasion into caval wall Tumor thrombus extending above diaphragm Prognostic factors (Metastatic) MSKCC score <1 year interval from diagnosis to systemic therapy Karnofsky performance status <70 LDH 1.5-fold higher than upper limit of normal HGB less than lower limit of normal Corrected serum Ca2+>10mg/dl More than 2 sites of metastasis Poor-prognosis patients are defined as those with≥3 predictors of short survival Survival 5 year survival according to stage at nephrectomy Stage 1 65-93% Stage 2 47-68% Stage 3 34-51% Stage 4 2-20% Spontaneous regression in <1% of RCC UCLA integrated staging system (UISS) 2-y CSS(%):99 93 82 69 37 7 5-y CSS(%):97 81 63 39 17 7 Survival Metastatic disease 30% with metastatic RCC at time of diagnosis 20-30% relapse within pts with high risk RCC Average survival of 10.2 months Cytokine-era Target-era Favorable-risk: 20months Intermediate-risk: 10months Poor-risk: 4months not reached 27months 8.8months 谢 THANK YOU 谢