[Intradiverticular bladder tumors]

Retrospective study conducted on 58 patients with vesical diverticulum seen in our unit between 1975 and 1992, of which a total of 11 (18.9%) patients had vesical tumours. Of these, 6 (10.3%) were intradiverticular and 5 (8.6%) extradiverticular. Sixty-six percent of patients with intradiverticular tumours also had prior or concurrent history of extradiverticular vesical tumours. The most frequent clinical presentation was gross haematuria. The abdomino-pelvic CT is the most sensitive morphological examination although in 33% cases it resulted in overstaging. Curative treatment was only possible in the 4 patients with urothelial tumours, in whom 3 partial cystectomies with pelvian lymphadenectomy (2 pT1 G2 and 1 pT3 G3) and 1 TUR (T1 G2) were performed. The 2 (33%) remaining patients had advanced locoregional epidermoid carcinoma (T4 N+). All patients with urothelial carcinoma are alive with follow-up ranging between 6 months for the one infiltrant case and 136 months for a surface tumour undergoing partial cystectomy. Prognosis for both epidermoid carcinoma was ominous with mean survival time of 9 months. Review of the literature and discussion of epidemiological, clinical, diagnostic, therapeutic and prognostic issues.