[Villous tumor of the duodenum].

8 cases of duodenal villous tumor were reported. A total of 11 tumors, with 2 in the bulb and 9 in the descending part, were excised. Malignant change was found in 4 cases (50%). Diagnosis could be made by using hypotonic duodenography and fibroscopy. The integral tumor should be examined by frozen section during operation, so as to determining the appropriate operation for satisfactory result. Postoperative follow up should be done periodically because of the possibility of recurrence after local excision.