A case of jejunal cancer arising from ectopic pancreas

Makoto Eizuka; Yosuke Toya; Ryo Sugimoto; Mizuki Komai; Ako Yamada; Taku Kimura; Shunichi Yanai; Naoki Yanagawa; Akira Sasaki; Takayuki Matsumoto

doi:10.1007/s12328-025-02148-5

A case of jejunal cancer arising from ectopic pancreas

Makoto Eizuka^*
, Yosuke Toya
, Ryo Sugimoto
, Mizuki Komai
, Ako Yamada
, Taku Kimura
, Shunichi Yanai
, Naoki Yanagawa
, Akira Sasaki
, Takayuki Matsumoto

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

A 74-year-old man presented with intestinal obstruction. CT (computed tomography) revealed a 25-mm mass in the proximal jejunum. Double-balloon endoscopy (DBE) identified a smooth, asymmetrically localized mass with oozing and luminal stenosis covered with the mucosa of swollen villi. Small bowel radiography demonstrated jejunal obstruction. Histopathological examination of the resected specimen confirmed moderately differentiated adenocarcinoma arising from ectopic pancreatic tissue of Heinrich type I. Our case suggests that cancer arising from ectopic pancreas should be considered as a candidate diagnosis of a submucosal tumor in the jejunum.

Original language	English
Pages (from-to)	610-614
Number of pages	5
Journal	Clinical Journal of Gastroenterology
Volume	18
Issue number	4
DOIs	https://doi.org/10.1007/s12328-025-02148-5
State	Published - Aug 2025
Externally published	Yes

Bibliographical note

Publisher Copyright:
© The Author(s) 2025.

Keywords

Cancer
Double-balloon endoscopy
Ectopic pancreas
Jejunum

ASJC Scopus subject areas

Gastroenterology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/s12328-025-02148-5

Cite this

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title = "A case of jejunal cancer arising from ectopic pancreas",

abstract = "A 74-year-old man presented with intestinal obstruction. CT (computed tomography) revealed a 25-mm mass in the proximal jejunum. Double-balloon endoscopy (DBE) identified a smooth, asymmetrically localized mass with oozing and luminal stenosis covered with the mucosa of swollen villi. Small bowel radiography demonstrated jejunal obstruction. Histopathological examination of the resected specimen confirmed moderately differentiated adenocarcinoma arising from ectopic pancreatic tissue of Heinrich type I. Our case suggests that cancer arising from ectopic pancreas should be considered as a candidate diagnosis of a submucosal tumor in the jejunum.",

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doi = "10.1007/s12328-025-02148-5",

language = "English",

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T1 - A case of jejunal cancer arising from ectopic pancreas

AU - Eizuka, Makoto

AU - Toya, Yosuke

AU - Sugimoto, Ryo

AU - Komai, Mizuki

AU - Yamada, Ako

AU - Kimura, Taku

AU - Yanai, Shunichi

AU - Yanagawa, Naoki

AU - Sasaki, Akira

AU - Matsumoto, Takayuki

PY - 2025/8

Y1 - 2025/8

N2 - A 74-year-old man presented with intestinal obstruction. CT (computed tomography) revealed a 25-mm mass in the proximal jejunum. Double-balloon endoscopy (DBE) identified a smooth, asymmetrically localized mass with oozing and luminal stenosis covered with the mucosa of swollen villi. Small bowel radiography demonstrated jejunal obstruction. Histopathological examination of the resected specimen confirmed moderately differentiated adenocarcinoma arising from ectopic pancreatic tissue of Heinrich type I. Our case suggests that cancer arising from ectopic pancreas should be considered as a candidate diagnosis of a submucosal tumor in the jejunum.

AB - A 74-year-old man presented with intestinal obstruction. CT (computed tomography) revealed a 25-mm mass in the proximal jejunum. Double-balloon endoscopy (DBE) identified a smooth, asymmetrically localized mass with oozing and luminal stenosis covered with the mucosa of swollen villi. Small bowel radiography demonstrated jejunal obstruction. Histopathological examination of the resected specimen confirmed moderately differentiated adenocarcinoma arising from ectopic pancreatic tissue of Heinrich type I. Our case suggests that cancer arising from ectopic pancreas should be considered as a candidate diagnosis of a submucosal tumor in the jejunum.

KW - Cancer

KW - Double-balloon endoscopy

KW - Ectopic pancreas

KW - Jejunum

UR - https://www.scopus.com/pages/publications/105008253348

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DO - 10.1007/s12328-025-02148-5

M3 - Article

C2 - 40522573

AN - SCOPUS:105008253348

SN - 1865-7257

VL - 18

SP - 610

EP - 614

JO - Clinical Journal of Gastroenterology

JF - Clinical Journal of Gastroenterology

IS - 4

ER -

A case of jejunal cancer arising from ectopic pancreas

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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