Intestinal adhesions increase the risk of .
USMLE® Step 1 style questions USMLE
USMLE® Step 2 style questions USMLE
A 12-year-old boy comes to the clinic because of a 2-week history of abdominal pain, nausea, and diarrhea. His temperature is 38.0°C (100.4°F), pulse is 92/min, respirations are 15/min, and blood pressure is 110/75 mm Hg. Laboratory tests show megaloblastic anemia. Lactulose breathing test shows a rise in hydrogen. Biopsy of the small bowel shows blunting of villi, hyperplasia of crypts, and an increased number of lymphocytes in the lamina propria. Which of the following is the most likely diagnosis?