Retrospective multicentre study of carboplatin monotherapy for clinical stage I seminoma.

OBJECTIVE: • To evaluate, in a retrospective multicentre study, the long-term oncological efficacy and morbidity of using carboplatin as an alternative treatment for patients with clinical stage I seminoma. PATIENTS AND METHODS: • Patients with clinical stage I seminoma treated with two cycles of adjuvant single-agent carboplatin (400 mg/m² body surface) from February 1990 until September 2008 were retrospectively identified. • A database was created (including information on patient characteristics, initial tumour staging, tumour marker levels, follow-up, oncological outcome, treatment side effects and long-term side effects), descriptive analyses were performed and the data were compared with those available in the literature. RESULTS: • Of 282 stage I seminomas identified in 276 patients, risk factors for progression (pT2/3, vessel invasion or tumour diameter ≥ 4 cm) were detected in 48.2% of tumours. • Chemotherapy was well tolerated, with patients experiencing only mild nausea. Bone marrow suppression was common (leucopaenia in 36.7% and thrombocytopaenia in 50.5% of patients, mainly grade 1/2). Neither neutropenic fever, nor any bleeding complication occurred. • During a mean follow-up of 75 months, three patients (1.06%) developed a retroperitoneal recurrence within the first 2 years after receiving adjuvant treatment and were salvaged by cisplatin-based chemotherapy. A contralateral second testicular germ cell tumour was diagnosed in five patients. CONCLUSIONS: • Two cycles of carboplatin monotherapy are highly effective and very well tolerated by all patients. The frequency of contralateral tumours appears to be reduced. • Despite the lack of a randomized trial, the available data in the literature suggest that the administration of two cycles instead of one cycle could lead to a reduction in recurrence rates of ≈50%.

Lymphatic and vascular embolizations are independent predictive variables of inguinal lymph node involvement in patients with squamous cell carcinoma of the penis: Gruppo Uro-Oncologico del Nord Est (Northeast Uro-Oncological Group) Penile Cancer data base data.

BACKGROUND: The objective of the current study was to identify independent clinical and pathologic variables that were predictive of lymph node involvement in patients with squamous cell carcinoma of the penis in a multicenter series with the intent to select patients who were suitable to undergo immediate inguinal lymphadenectomy. METHODS: Data were analyzed from 175 patients who underwent surgery for penile carcinoma in 11 urologic centers participating in the Gruppo Uro-Oncologico del Nord-Est (Northeast Uro-Oncological Group) Penile Cancer Data Base. Pathologically positive lymph nodes were defined as the presence of histologically confirmed lymph node metastasis in patients who underwent either immediate or delayed inguinal and/or pelvic lymphadenectomy. Patients who had clinically positive lymph nodes with cytologically positive fine-needle aspiration results and who had not undergone lymphadenectomy were censored. RESULTS: Overall, lymph-node involvement was observed in 71 of 175 patients (40.6%) included in the analyses. After analyzing the whole group of patients, the following variables were identified as independent predictors of pathologic lymph node metastasis: clinical lymph node status, pathologic stage of the primary tumor, venous and lymphatic embolizations, and histologic grade. In the subgroup of patients with clinically negative lymph nodes, tumor thickness, histologic grade, lymphatic and venous embolizations, infiltration of both corpus spongiosum and urethra, and pathologic stage of the primary tumor (according to the 1997 TNM classification system) were predictive of lymph node involvement on univariate analysis. The generated logistic regression model showed that venous and/or lymphatic embolizations and infiltration of the corpus spongiosum and/or urethra were independent predictors of pathologic lymph node metastasis in patients with clinically negative lymph nodes. CONCLUSIONS: Venous and/or lymphatic embolizations played relevant roles as predictors of pathologic lymph node involvement in patients with penile neoplasia and should be considered important parameters in determining which patients with clinically negative lymph nodes should undergo immediate lymphadenectomy.

Prognostic factors in patients with renal cell carcinoma: retrospective analysis of 675 cases.

OBJECTIVES: To identify independent predictors of cause-specific survival in patients affected by renal cell carcinoma (RCC). MATERIAL AND METHODS: We evaluated retrospectively 675 patients who underwent in our department from 1976 to 1999 radical nephrectomy for RCC. Pathological stage of the primary tumor (TNM, 1997) was pT1 in 326 cases (48%), pT2 in 133 (20%), pT3a in 66 (10%), pT3b in 138 (20%) and pT4 in 12 (2%). According to TNM classification (Union International Contre le Cancer (UICC), 1997) the pathological stage was I in 303 cases (45%), II in 119 (18%), III in 150 (22%) and IV in 103 (15%). Histological grading was assigned according to Fuhrman's classification in only 333 cases: G1 in 25%, G2 in 35%, G3 in 33% and G4 in 7%. RESULTS: Cause-specific survival was 77% at 5 years, 69% at 10 years, 64% at 15 years and 57% at 20 years. Five and 10 year cause-specific survival was, respectively 91.4 and 88.5% in pT1 tumors, 84.8 and 72.7% in pT2, 57.4 and 35.6% in pT3a, 47.2 and 33.6% in pT3b-c, and 29.6% in pT4 (P < 0.0001). In relation to the pathological stage according to TNM classification, 5 and 10 year cause-specific survival was, respectively 94 and 91.6% in stage I tumors, 89.7 and 78% in stage II, 63.4 and 46.4% in stage III and 28 and 16.3% in stage IV (P < 0.0001). In relation to the nuclear grade of the primary tumor 5 and 10 year cause-specific survival was, respectively 94 and 88% in G1 tumors, 86 and 75% in G2, 59 and 40% in G3 and 31% in G4 (P < 0.0001). At multivariate analysis pathological stage of the primary tumor, lymph nodes involvement, presence of distant metastases at diagnosis and nuclear grading resulted all independent predictors of cause-specific survival in patients with RCC. CONCLUSION: Pathological stage of primary tumors, lymph nodes involvement, presence of distant metastases at diagnosis and nuclear grading according to Fuhrman resulted all independent predictors of cause-specific mortality in patients with RCC.