Villous adenoma of the bladder.

Malignant villous adenoma of the appendix invading the urinary bladder: a case report

Primary tumors of the appendix are rare, while malignant villous adenoma of the appendix invading the urinary bladder is extremely uncommon. We reported the present case of a 63-year-old male with malignant villous adenoma of the appendix invading the urinary bladder. The conventional cystoscope demonstrated a mass at the front right side wall of the urinary bladder, which misdiagnosed as bladd...

A case of villous adenoma of the urinary bladder with tubulovillous architecture: characterization by immunohistochemical analysis.

Villous adenomas of the urinary tract are rare as compared to urothelial carcinoma. We report a case of urinary bladder villous adenoma in a 90-year-old woman. Cystoscopic examination revealed a papillary tumour in the diverticulum at the posterior wall of the urinary bladder. Transurethral resection was performed and histopathological examination revealed predominantly tubulovillous architectu...

Concurrence of villous adenoma and non-muscle invasive bladder cancer arising in the bladder: a case report and review of the literature

BACKGROUND Villous adenoma arising in the urinary tract is rare tumor. Most cases have been identified as benign neoplasm in the colon. Villous adenoma of the gastrointestinal tract is thought arise from premalignant polyps. Here, we report a case of concurrence of villous adenoma and non-muscle invasive bladder cancer. CASE PRESENTATION An 85-year-old woman presented at our office because of...

Villous adenoma of the urinary bladder: rare location

Villous adenomas are common lesions of the gastrointestinal tract but they are rarely located in the urinary tract including the urinary bladder. There are a few case reports and series in the literature. Here we report a 43-year-old male patient who had a polypoid lesion located on the left lateral wall of the urinary bladder. Transurethral resection was performed. The diagnosis was 'villous a...

Concurrence of villous adenoma and non-muscle invasive bladder cancer arising in the bladder: a case report

Mucinous adenocarcinoma with superficial stromal invasion and villous adenoma of urachal remnants: a case report.

This report describes a case of mucinous adenocarcinoma with superficial stromal invasion and villous adenoma originating in the dome of the urinary bladder. Although no urachal remnants were identified, the location suggested urachal derivation. Only two previous cases of urachal adenocarcinoma with features of early stromal invasion associated with a villous tumour have been described.