Korean J Gastrointest Endosc.  2000 Jan;20(1):68-72.

A Case of Antral and Duodenal Nonpolypoid Adenomas in a Patient with Familial Adenomatous Polyposis

• Lee YS
• Choi SJ
• Lee CR
• Lee JH
• Lee DS
• Kim WS
• Park HS
• Choi SH

Abstract

Familial adenomatous polyposis (FAP) is an autosomal dominantly inherited colon cancer-predisposing disorder, characterized by the development of innumerable adenomas in the large intestine. Polyps are present in the upper gastrointestinal tract in almost all FAP patients and there is a peculiar predilection for adenomatous change in the duodenum. Colonic adenomas in FAP are commonly observed as polyps but nonpolypoid adenomas can also be seen in the upper gastrointestinal tract. Careful endoscopic examination is needed for detecting such nonpolypoid lesions. At present, the adenoma-carcinoma sequence is thought to exist also in the duodenum, and malignancy of the duodenum represents one of the most common causes of mortality among patients with FAP. Therefore, careful periodic follow-up of upper intestinal endoscopies are recommended in patients with this disease, in consideration to the possible development of duodenal nonpolypoid adenomatous lesions. A case involving an experience of antral and duodenal nonpolypoid adenomas in a patient with FAP is herein reported.

Keyword

Familial adenomatous polyposis; Duodenum; Gastric antrum; Nonpolypoid adenoma

MeSH Terms

Adenoma*
Adenomatous Polyposis Coli*
Colon
Duodenum
Follow-Up Studies
Humans
Intestine, Large
Mortality
Polyps
Pyloric Antrum
Upper Gastrointestinal Tract