What are benign duodenal tumors?

Adenomas are sessile or pedunculated; may be associated with familial adenomatous polyposis; Types are tubular, villous, Brunner gland. Tubular: low malignant potential Villous: high malignant risk; 30% of those >3 cm have malignant focus; often periampullary Brunner gland: hyperplasia of exocrine glands Hamartomas: associated with Peutz-Jeghers syndrome Lipomas: no malignant potential Symptoms and signs gastric outlet obstruction, biliary obstruction and jaundice, upper GI bleeding. Diagnosis Duodenal tumor evident on upper GI endoscopy or contrast radiography.