A Case of Cystic Formed Aberrant Pancreas Arising from the Gastric Antrum and Prolapsing into the Duodenum

Motohira Yoshida, Yuji Watanabe, Atsushi Horiuchi, Takashi Doi, Hiromichi Nakagawa, Syungo Yukumi, Kouichi Sato, Yuji Yamamoto and Kanji Kawachi

Department of Surgery II, Ehime University School of Medicine

We report a case of aberrant pancreatic prolapse into the duodenum treated with minimally invasive surgery. A 51-year-old man admitted on a diagnosis of an asymptomatic gastric submucosal tumor showed no laboratory data abnormalities. Gastroduodenal endoscopy and fluoroscopy showed a spherical submucosal tumor apparently arising from the antral mucosa and prolapsing into the duodenal bulbus. Histological examination of the tumor showed no specific results. Enhanced computed tomography showed a cystic tumor with peripheral contrast enhancement in the duodenum. Preoperative diagnosis was a gastrointestinal stromal tumor with central degeneration. To prevent intraoperative tumor cells seeding, we conducted a laparoscope-assisted intragastric en-bloc lumpectomy. The tumor was diagnosed histologically as an aberrant pancreas containing nonatypic pancreatic juice. Recovery and discharge were uneventful.

Key words
aberrantpancreas, gastrointestinal stromal tumor, minimally invasive surgery

Reprint requests
Motohira Yoshida Department of Surgery II, Ehime University School of Medicine
Shitsukawa, Toon, 791-0295 JAPAN

Accepted
February 22, 2006

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