A 65-year-old man presented to the office complaining of recurrent abdominal distension and diarrhea. He did notice weight changes or blood in the stool. The symptoms did not seem to be related to dairy products. Physical examination is unremarkable. The stool guiac test is positive. Upper endoscopy with biopsy shows hyperplasia of branched, tubular glands in the submucosa layer. The glands have alkaline secretions. Which of the following is the site of the biopsy?

Question

Quizplus · Accepted Answer

Eductional Objective: The low pH caused by the gastric acids is overcome by the bicarbonate secretion from the Brunner glands of the submucosa and the pancreas. The chronic hyperacidity will induce hyperplasia of the Brunner glands in the submucosa of the duodenum.

A 65-Year-Old Man Presented to the Office Complaining of Recurrent