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Updated: Feb 17, 2026

An Orthotopic Resectional Mouse Model of Pancreatic Cancer
Published on: September 24, 2020
Gastric neuroendocrine tumor arising from heterotopic pancreas
Takehiro Tanaka1, Rika Omote2, Noriko Okazaki2
1Department of Pathology, Okayama University Hospital, Okayama, Japan. takehiro@md.okayama-u.ac.jp.
Abstract:
There are few English reports on secondary tumors from heterotopic pancreas. Here, we describe a case of gastric neuroendocrine tumor (NET) arising from heterotopic pancreas. A 72-year-old woman underwent esophagogastroduodenoscopy as part of a general health check-up. An endoscopic examination revealed a submucosal tumor on the greater curvature of the gastric body. Laparoscopic and endoscopic cooperative surgery was performed. Histological diagnosis concluded that it was a Grade 1 NET arising from heterotopic pancreas. We report this extremely rare case of a NET presenting as a submucosal tumor, considered to have originated from heterotopic pancreatic tissue.
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