A Case Report of An Adult Heterotopic Pancreas of the Ileum

Shigeyuki Morino, Yu Shigemasa, Kazuhiko Hatano, Hideki Ikari, Teruhisa Shimizu, Yoji Sugamura, Tadaomi Kunizaki and Nobuhisa Yonemitsu^*

Department of Surgery and Department of Pathology^*, Sasebo Chuo Hospital

We report a case of heterotopic pancreas of the ileum causing intussusception. A 23-year-old woman admitted for 3 days of abdominal pain and vomiting but no remarkable personal or familial history was found, by palpation to have a mass about 5 cm in diameter with tenderness in the lower left abdomen. Ultrasonography (US) and computed tomography (CT) of the abdomen showed a Target sign and obstruction of the small bowel. We conducted surginal exploration under a diagnosis of small intestinal intussusception, finding a polypoid mass 3 cm in diameter 90 cm orally from the terminal ileum. Histopathological examination showed heterotopic Heinrich type III pancreatic tissue. Heterotopic pancreas occurs near the pancreas in organs such as the stomach, duodenum, and jejunum, but rarely arises in the ileum. Heterotopic pancreas of the ileum is rarely found until it has caused intussusception. It then occurs most commonly in the lower ileum from the terminal ileum to 100 cm.

Key words
heterotopic pancreas, aberrant pancreas, ileum

Reprint requests
Shigeyuki Morino First Department Surgery, Nagasaki University School of Medicine 1-7-1 Sakamoto, Nagasaki, 882-8501 JAPAN

Accepted
June 25, 2002

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