Scientific publications

Clinical Management of Small-Cell Carcinoma of the Urinary Tract: A 10-Year Single-Center's Experience

Carranza OE, Castañón E, Abella LE, Castillo A, Arévalo E, Fusco JP, Zudaire JJ, Carías R, Cambeiro M [SP], Martínez-Monge R, Gil-Bazo I.
Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain.

Magazine: Clinical Genitourinary Cancer

Date: Nov 9, 2012

Radiation Oncology Medical Oncology Urology [SP]

BACKGROUND
Small-cell carcinoma (SCC) comprises 1% of primary bladder tumors and approximately 2% of prostate neoplasms. Metastatic disease at diagnosis is common, and survival outcomes are extremely poor. There is controversy about the ideal clinical management of these patients. The neuron-specific enolase (NSE) serum levels have never been studied in patients with small-cell carcinoma of the urinary tract (SCCUT).

PATIENTS AND METHODS
We report the clinical outcome of 12 consecutive SCCUT patients treated during the past 10 years. We also study the NSE levels at diagnosis and during treatment.

RESULTS
Patients with limited disease (LD) experienced a non-significant longer progression-free survival (PFS) and overall survival (OS) compared with extensive disease (ED) subjects. Patients with bladder SCC showed a significantly higher median PFS compared with prostate SCCUT patients (22 vs. 6 months; P = .034), although that difference did not impact on a significant longer OS. NSE levels decreased during chemotherapy administration in all patients with ED and baseline high levels.

CONCLUSIONS
Our patients showed a poor prognosis as described in previous studies. A better outcome for patients with bladder SCC compared with prostate SCC could be suggested. Serum NSE levels should be further evaluated to prove its potential use in early diagnosis and treatment monitoring during chemotherapy.

CITATION   2012 Nov 9. pii: S1558-7673(12)00211-X. doi: 10.1016/j.clgc.2012.09.011

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