Prognostic factors in renal cell carcinoma: analysis of 227 patients treated at the Brazilian National Cancer Institute.

PURPOSE: We evaluated the role of several prognostic factors in predicting death and/or progressive disease in patients with renal cell carcinoma. MATERIALS AND METHODS: Between 2004 and 2010, 227 consecutive patients with renal cell carcinoma underwent radical nephrectomy at our Institute. All histological specimens were examined by the same pathologist. We considered certain histological parameters, including histological subtype, conventional Fuhrman grade, presence of sarcomatoid features, adrenal gland infiltration, invasion of the perinephric fat, vascular embolization, collecting system invasion, presence or absence of tumour necrosis (0 %, 1 % to 49 %, or 50 % or greater) and regional lymph node metastasis. RESULTS: Variables significantly associated with death and/or progressive disease on univariate analysis were histological subtype (p = 0.006), Fuhrman grade (p < 0.0001), tumor necrosis (p = 0.009), perinephric fat invasion (p = 0.002), vascular embolization (p = 0.0002), presence of lymph node involvement (p < 0.002), tumor size (p = 0.0006), TNM stage (p < 0.00001) and presence of metastasis (p < 0.00001). In the multivariable model histological subtype, tumor necrosis, lymph node involvement and presence of metastasis were independent risk factors for disease-free survival (p = 0.011, 0.042, 0.025 and p < 0.0001, respectively). CONCLUSION: Histological subtype, tumor necrosis, lymph node involvement and presence of metastasis proved to be independent prognostic factors for disease-free survival. Therefore, the presence and rate of tumor necrosis should always be informed by the pathologist and lymphadenectomy should be performed in all patients.

Prognostic factors in renal cell carcinoma: analysis of 227 patients treated at the Brazilian National Cancer Institute

PURPOSE: We evaluated the role of several prognostic factors in predicting death and/or progressive disease in patients with renal cell carcinoma. MATERIALS AND METHODS: Between 2004 and 2010, 227 consecutive patients with renal cell carcinoma underwent radical nephrectomy at our Institute. All histological specimens were examined by the same pathologist. We considered certain histological parameters, including histological subtype, conventional Fuhrman grade, presence of sarcomatoid features, adrenal gland infiltration, invasion of the perinephric fat, vascular embolization, collecting system invasion, presence or absence of tumour necrosis (0%, 1% to 49%, or 50% or greater) and regional lymph node metastasis. RESULTS: Variables significantly associated with death and/or progressive disease on univariate analysis were histological subtype (p = 0.006), Fuhrman grade (p < 0.0001), tumor necrosis (p = 0.009), perinephric fat invasion (p = 0.002), vascular embolization (p = 0.0002), presence of lymph node involvement (p < 0.002), tumor size (p = 0.0006), TNM stage (p < 0.00001) and presence of metastasis (p < 0.00001). In the multivariable model histological subtype, tumor necrosis, lymph node involvement and presence of metastasis were independent risk factors for disease-free survival (p = 0.011, 0.042, 0.025 and p < 0.0001, respectively). CONCLUSION: Histological subtype, tumor necrosis, lymph node involvement and presence of metastasis proved to be independent prognostic factors for disease-free survival. Therefore, the presence and rate of tumor necrosis should always be informed by the pathologist and lymphadenectomy should be performed in all patients.

Prognostic factors in invasive squamous cell carcinoma of the penis: analysis of 196 patients treated at the Brazilian National Cancer Institute.

PURPOSE: We evaluated the role of primary tumor histopathological features for predicting regional metastasis and the prognosis in patients with penile squamous cell carcinoma. MATERIALS AND METHODS: From April 1996 to January 2007, 202 consecutive patients with penile carcinoma underwent surgical treatment at our institution. Of these patients 196 were studied to identify prognostic factors. All histological specimens were examined by the same pathologist. We considered certain histological parameters, including histological grade, invasion depth, lymphovascular embolization, perineural infiltration, infiltration of the corpus cavernosum or spongiosum, urethral infiltration and koilocytosis. RESULTS: Variables significantly associated with regional metastasis on univariate analysis were stage stratification (p = 0.0338), histological grade (p = 0.0112), invasion depth (0.0114), lymphovascular embolization (p <0.0001), perineural infiltration (p = 0.0092), corpora cavernosa infiltration (p = 0.0005) and koilocytosis (p = 0.0013). In the multivariable model lymphovascular embolization and absent koilocytosis were independent risk factors for lymphatic metastasis (p = 0.001 and 0.009, respectively). We also found a better survival rate in patients with koilocytosis and without lymphovascular embolization (p = 0.001 and 0.005, respectively). CONCLUSIONS: Lymphovascular embolization and absent koilocytosis were independent prognostic factors for the risk of lymphatic metastasis. Patients with koilocytosis and without lymphovascular embolization had better 5-year survival.

Surgical treatment of invasive squamous cell carcinoma of the penis: Brazilian National Cancer Institute long-term experience.

BACKGROUND AND OBJECTIVES: We reviewed our long-term experience with surgical treatment of patients with penile carcinoma. METHODS: From 1960 to 2006, 688 patients with penile carcinoma underwent surgical treatment at our Institute. Several forms of surgical treatment were compared and follow-up data analyzed. RESULTS: Stage stratification demonstrated a better survival rate for patients with stages T1N0 and T1N1,T2N0-1. Patients with well differentiated carcinoma had a higher survival rate than those with moderately and poorly differentiated carcinoma (P < 0.0001 and P = 0.006). Risk stratification showed a better survival rate for patients in the low-risk group (T1G1,T1G2) (P = 0.013 and P < 0.00001). Patients in the intermediate group (T2G1,T2G2,T3G1,T3G2) presented a higher survival rate than patients in the high-risk group (T1-3G3,T4G1-3) (P < 0.00001). Patients who underwent immediate lymphadenectomy had a better survival rate than those who underwent delayed lymphadenectomy (P = 0.002). CONCLUSIONS: Stage and tumor grade affected the prognosis of the disease. The presence and the extent of metastasis to the inguinal region were the most important prognostic factors for survival in our patients. Immediate lymphadenectomy is indicated in all patients. Since recurrences were noted within 8, 10, and 25 years after primary treatment, a frequent and lasting follow-up is essential for all patients.

Conservative treatment of penile melanoma: case report and literature review

Melanomas do pênis são tumores malignos muito agressivos. Descrevemos o caso de um paciente com uma lesão confinada ao prepúcio e com linfonodos inguinais clinicamente negativos, tratados conservadoramente. O pacientesubmeteu-se à ressecção alargada da lesão para tratamento e diagnóstico. O tratamento das regiões inguinais em pacientes com melanoma de pênis permanece controvertido, uma vez que a incidência de doença metastática é significativamente mais baixa nos pacientes com estádios patológicos iniciais. Como nesse paciente o estádio patológico do melanoma de pênis era T2a (profundidade 1,9 mm, sem ulceração), decidimos usar linfocintigrafia pré-operatória, mapeamento intra-operatório dos linfonodos e biópsia do linfonodo sentinela para avaliar o comprometimento metastático inguinal. Cortes de congelação do linfonodo sentinela direito retirado foram negativos para malignidade e nenhum tratamento adjuvante foi realizado. A ressecção alargada da lesão permitiu efetivocontrole local do tumor peniano e o paciente é mantido em acompanhamento clínico pós-operatório.

Melanomas of the penis are highly aggressive malignant tumors. We report on a patient with a lesion confined tothe prepuce and with clinically negative inguinal lymph nodes, treated conservatively. The patient underwent wide local excision (WLE) for treatment and histological diagnosis. Treatment of the inguinal region in patients withpenile melanoma remains controversial, since the incidence of metastatic disease in those with early pathologicalstagedisease is significantly lower. Since our patient presented penile melanoma pathological stage T2a (depth 1.9mm, without ulceration), we chose to use pre-operative lymphoscintigraphy, intra-operative lymph node mapping,and sentinel node biopsy to evaluate inguinal metastatic involvement. Frozen sections in an excised right sentinelnode were negative, and no adjuvant treatment was performed. WLE provided effective local control of the peniletumor, and the patient remains under postoperative surveillance.

[Treatment of patients with recurrent superficial bladder cancer with lyophilized Moureau-Rio de Janeiro BCG strain. Brazillian National Cancer Institute experience]. / Traitement des patients présentant une tumeur superficielle de vessie par la souche de BCG Moureau-Rio de Janeiro. Expérience de l'Institut National Brésilien du Cancer.

PURPOSE: We present our experience with lyophilized Moureau-Rio de Janeiro BCG strain for treatment of patients with recurrent superficial bladder cancer. PATIENTS AND METHODS: From October 1986 to January 2001, 114 patients were treated by transurethral resection followed by intravesical instillation of BCG at our institution. Follow-up ranged from 10 to 144 months (mean 50.16 months). The treatment included 6 inductions and 10 maintenance cycles of BCG instillations. The patients received an initial dose with 40 mg and subsequent doses with 80 mg of lyophilized Moureau-Rio de Janeiro BCG strain. Chi-square and Mantel-Haenszel test, with 95% significance, were used to evaluate possible associations among variables. The Kaplan-Meyer method was used to evaluate the disease-free survival rates while log-rank test was used to compare curves among the groups. RESULTS: Overall recurrence and progression rates after treatment were 45.6% and 13%, respectively. Four patients (3.5%) had complications following BCG instillations. Three of them had to be treated with antituberculous therapy. These patients presented pulmonary disease, granulomatous prostatitis and epididymo-orchitis respectively. CONCLUSIONS: Moureau-Rio de Janeiro BCG strain was overall well tolerated in intravesical instillations, similar to other strains used in literature. Recurrence rates were decreased with adjuvant BCG therapy. Tumor size, grade and presence of associated carcinoma in situ provided predictive information regarding the behavior of recurrent superficial tumors. The WHO/ISUP classification when compared with tumor grade was superior in selecting patients with high risk of progression.

Reservatório urinário continente: uma alternativa para a substituiçäo vesical / Contigent urinary reservoir: an alternative for vesical substitution

Um segmento de íleo e de cólon é utilizado para criar uma neobexiga, após cistectomia com uma anastomose ceco-uretal. Esta técnica cirúrgica denominada Mainz Pouch utiliza 15 cm de ceco e cólon ascendente e duas alças ileais do mesmo comprimento para a construçäo de um reservatório urinário. Esta neobexiga permite a continência urinária, um grande reservatório de baixa pressäo, o esvaziamento vesical voluntário e o reimplante uretral com técnica anti-refluxo. Quatro pacientes foram submetidos a este procedimento após a cistoprostatectomia, poupando-se, porém, a inervaçäo responsável pela ereçäo. O seguimento destes pacientes variou entre oito e 14 meses. Os quatro pacientes estäo continentes, durante os períodos diurno e noturno. Três esvaziam suas neobexigas espontaneamente, em intervalos normais. Um paciente tem ereçöes e relaçöes sexuais.