A rare case of mucous-secreting villous adenoma of the bladder.

A case of mucous-secreting villous adenoma of the urinary bladder associated with cystitis glandularis is reported which led to radical cystectomy because of the extensive bladder involvement. An immunohistochemical study was performed in order to detect ABH tissue antigens. The histogenesis and the possible malignant potential of this neoplasm are discussed.