Journal
ANTICANCER RESEARCH
Volume 40, Issue 8, Pages 4787-4793Publisher
INT INST ANTICANCER RESEARCH
DOI: 10.21873/anticanres.14481
Keywords
Urothelial carcinoma; histological variant; radical cystectomy; clinical outcomes
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Background/Aim: Bladder cancer with histological variant (HV) has different morphological features from usual urothelial carcinoma (UC). The aim of this study was to evaluate the oncological outcomes of HV in patients with bladder cancer. Patients and Methods: We retrospectively evaluated data from 102 patients with UC of the bladder treated with radical cystectomy between 1998 and 2017. Pathological findings including HV were assigned by one dedicated pathologist. Recurrence-free survival (RFS) and cancer-specific survival (CSS) and overall survival (OS) were estimated by Cox regression models. Results: In total, 26 patients (25.5%) had HV, and the most common variant was squamous differentiation, followed by glandular differentiation and a mixed variant consisted of squamous and glandular differentiation. The presence of HV was associated with RFS and CSS (p=0.018, p=0.036, respectively). Conclusion: HV has more aggressive tumor biological features compared to those with pure UC. The presence of HV was associated with poor survival.
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