[Spectrum of morphologic findings in cystectomy specimens].

A report of 64 cystectomy specimens is presented with emphasis on the macroscopic tumor pattern of the urinary bladder carcinoma. From gross observations bladder cancer gives a wide spectrum: unifocal or multiple papillary, mostly superficial carcinomas, nodular tumors more or less deeply invading the bladder muscle, flat carcinomas, widespread diffuse carcinomas with infiltration of the whole bladder wall, flat ulcers with or without tumor rest after TUR, and tumors almost filling the whole bladder and destroying the bladder wall; miscellaneous tumours were also observed. In 3 cases bladder cancer arose from the lumen of one or more diverticula. This study describes the features presented at the time that patients underwent radical cystectomy in early as well as in advanced stages.