膵管非癒合を合併した十二指腸副乳頭神経内分泌腫瘍の1例

佐々木 善浩; 市原 明比古; 古閑 千裕; 岩崎 智仁; 三原 通晴; 豊住 康夫; 有馬 信之; 上市 英雄; 平田 啓一; 川村 紀夫

doi:10.11280/gee.56.1556

A CASE OF NEUROENDOCRINE TUMOR IN THE ACCESSORY PAPILLA OF THE DUODENUM WITH COMPLETE PANCREAS DIVISUM

Yoshihiro SASAKI, Akihiko ICHIHARA, Chihiro KOGA, Tomohito IWASAKI, Michiharu MIHARA, Yasuo TOYOZUMI, Nobuyuki ARIMA, Hideo KAMIICHI, Keiichi HIRATA, Norio KAWAMURA

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JOURNAL FREE ACCESS

2014 Volume 56 Issue 4 Pages 1556-1562

DOI https://doi.org/10.11280/gee.56.1556

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Abstract

A 60-year-old man was found to have a tumor in the accessory papilla of the duodenum by upper gastrointestinal endoscopy. The tumor was 10mm in size and pathological examination revealed that it was a neuroendocrine tumor. Endoscopic retrograde cholangiopancreatography (ERCP) showed complete pancreas divisum. Computed tomography revealed that there was no distant metastasis. Therefore, pancreaticoduodenectomy was performed. The resected specimen showed that the neuroendocrine tumor was 5mm in size and invaded the submucosal layer, but there was no lymph node metastasis.
Neuroendocrine tumor in the accessory papilla is rare, but it is frequently associated with pancreas divisum.

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