A case report of the villous adenoma of the rectum

Villous adenoma of the rectum is reported occasionally in the United States, but is rarely seen in Japan. Recently, we experienced one case of rectal villous adenoma in a 53-years-old female who consulted our hospital with diarrhea as her chief complaint. A circumferential tumor was found in the rectum. A low anterior resection was perfprmed and pathological examination revealed a villous adenoma (5×4 cm in size) located in the mucosa propria. No malignancy was observed. Three months of postoperative follow-up has not revealed any signs of recurrence. We discussed the morphological characteristic and prognosis of this desease.