J Korean Soc Magn Reson Med.  2013 Jun;17(2):154-157. 10.13104/jksmrm.2013.17.2.154.

Perilesional Steatosis in Ectopic Pancreas Mimicking Exogastric Mass : A Case Report

• Nam MY
• Kim MY
• Kim YJ
• Suh CH
• Choi SJ
• Cho JS

• KMID: 2099875
• DOI: http://doi.org/10.13104/jksmrm.2013.17.2.154

Abstract

We report an unusual case of ectopic pancreas that appeared on radiologic images as a lobulated, submucosal mass enclosed by fat component in the gastric lower body. Although, ectopic pancreas including fat component is extremely rare, in the setting of gastric submucosal mass with containing perilesional fat, these findings should be considered in ectopic pancreas as part of the differential diagnosis.

Keyword

Ectopic pancreas; Submucosal tumor; Stomach; Magnetic resonance image

MeSH Terms

Diagnosis, Differential
Pancreas
Stomach

Figure

• 

  Fig. 1 38-year-old man with ectopic pancreas in gastric lower body. a. Axial CT scan shows a well-defined ovoid endoluminal submucosal mass (arrowhead) and perilesional fat replacement (arrow) in anterior wall of gastric lower body. b. Axial T2-weighted MR image shows isointense mass (arrowhead) and periperhal hyperintense fatty tissue (arrow). c, d. T1-weighted 2D dual gradient echo inphased image shows that hyperintense fatty infiltration enclose iso intense (arrowhead) lobulated mass with pancreas, as well as signal drop on opposed phase (arrow). e, f. Axial fat suppressed T1-weighted MR image and contrast-enhanced T1-weighted MR image show hyperintense mass (arrowhead) with highly enhancement and peripheral saturated hypointense fatty contents (arrow). g. Gross cut surface of the specimen shows a well-demarcated submucosal mass (M) surrounded by adipose tissue (arrows) and deeply burried within the muscularis propria. h. On microscopic finding, the heterotopic pancreas lobules are composed of pancreatic acini and ducts within the muscular bundles and surrounded by adipose tissue (H & E stain, original magnification ×12.5)

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