Identification of ectopic pancreas in the ileum by capsule endoscopy.
Ectopic pancreas, an uncommon submucosal tumor in the gastrointestinal (GI) tract, is histologically similar to normal pancreatic tissue. We present a case of ectopic pancreas in the ileum. A 35-year-old man had intermittent dark bloody stool for 2 months accompanied by epigastric pain and postprandial abdominal fullness. Esophagogastroduodenoscopy and colonoscopy did not reveal any abnormalities. Capsule endoscopy revealed a small red polyp in the ileum. Abdominal computed tomography scan and small bowel barium follow-through study were not of any help. GI bleeding and abdominal discomfort were resolved after the lesion was surgically removed. Pathologic examination demonstrated pancreatic acinar cells and a secretory duct in the ileal submucosa, consistent with ectopic pancreas. Ectopic pancreas in the small intestine may be a rare cause of obscure GI bleeding. Capsule endoscopy seems to be a good, noninvasive tool for identification in the small bowel, particularly when other imaging modalities fail to detect any abnormalities.
Chen
Huan-Lin
HL
Division of Gastroenterology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan.
Lin
Shee-Chan
SC
Chang
Wen-Hsiung
WH
Yang
Tsen-Long
TL
Chen
Yu-Jan
YJ
D000328:Adult; D002828:Choristoma / Q000175:diagnosis* / Q000473:pathology; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D007077:Ileal Diseases / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D010179:Pancreas