J Korean Soc Radiol.  2019 Jul;80(4):788-792. 10.3348/jksr.2019.80.4.788.

Heterotopic Pancreas with Abundant Fat Tissue in the Stomach: A Case Report

Affiliations
  • 1Department of Radiology, Korea Cancer Center Hospital, Seoul, Korea. lcf0666@hanmail.net

Abstract

Heterotopic pancreas is often an incidental finding and can be found at the stomach. However, heterotopic pancreas containing abundant fat is very rare. Fatty replacement of the pancreas is the most frequent pathologic finding, but the precise etiology of the entity remains unclear. The pathological findings observed in the pancreas can also occur in the heterotopic pancreas. Here, we present a case of heterotopic pancreas in the stomach. On CT and MR imaging, it manifested as a predominant fat-density submucosal mass with enhancing solid component.


MeSH Terms

Incidental Findings
Magnetic Resonance Imaging
Pancreas*
Stomach*
Tomography, X-Ray Computed

Figure

  • Fig. 1 A 44-year-old male with heterotopic pancreas in the gastric body incidentally detected on CT. A. Axial contrast-enhanced CT image reveals a well-defined fatty submucosal mass (arrowheads) in the gastric body. A more caudal scan of the CT image shows an enhancing solid component (arrow) surrounded by fat. The submucosal mass exhibits an endoluminal growth pattern. B. T2-weighted MR image shows a predominantly high-signal intensity mass (arrowheads) in the gastric body. C. Contrast-enhanced T1-weighted, fat-suppressed MR image shows a loss of signal in the fatty portions of the mass (arrow) and enhancement of the solid component (arrowhead) of the mass. D. Endoscopic image shows a submucosal mass with intact overlying mucosa in the greater curvature of the gastric body. E. Gross specimen shows a 2.8 × 2.0 × 1.5 cm, yellow-colored, lobulated mass in the submucosal layer. F. Photomicrograph reveals scattered epithelial tissue (arrow) and the surrounding abundant fat tissue (hematoxylin-eosin stain, × 40; left). High-power photomicrograph of epithelial tissue shows ductal structure (arrow) and the acini (star), compatible with heterotopic pancreas (hematoxylin-eosin stain, × 200; right).


Reference

1. Christodoulidis G, Zacharoulis D, Barbanis S, Katsogridakis E, Hatzitheofilou K. Heterotopic pancreas in the stomach: a case report and literature review. World J Gastroenterol. 2007; 13:6098–6100.
Article
2. Rezvani M, Menias C, Sandrasegaran K, Olpin JD, Elsayes KM, Shaaban AM. Heterotopic pancreas: histopathologic features, imaging findings, and complications. Radiographics. 2017; 37:484–499.
Article
3. Chuang MT, Tsai KB, Ma CJ, Hsieh TJ. Ileoileal intussusception due to ileal ectopic pancreas with abundant fat tissue mimicking lipoma. Am J Surg. 2010; 200:e25–e27.
Article
4. Nam MY, Kim MY, Kim YJ, Suh CH, Choi SJ, Cho JS. Perilesional steatosis in ectopic pancreas mimicking exogastric mass: a case report. J Korean Soc Magn Reson Med. 2013; 17:154–157.
5. Moriki T, Ohtsuki Y, Takahashi T, Ueta S, Mitani M, Ichien M, et al. Lipoma-like tumor mass probably arising in the retroperitoneal heterotopic pancreas: a previously undescribed lesion. Pathol Int. 2004; 54:527–531.
Article
6. Kim HJ, Byun JH, Park SH, Shin YM, Kim PN, Ha HK, et al. Focal fatty replacement of the pancreas: usefulness of chemical shift MRI. AJR Am J Roentgenol. 2007; 188:429–432.
Article
7. Ferrozzi F, Tognini G, Bova D, Pavone P. Lipomatous tumors of the stomach: CT findings and differential diagnosis. J Comput Assist Tomogr. 2000; 24:854–858.
Article
8. Thompson WM, Kende AI, Levy AD. Imaging characteristics of gastric lipomas in 16 adult and pediatric patients. AJR Am J Roentgenol. 2003; 181:981–985.
Article
9. Liu YJ, Karamchandani DM. Gastric angiolipoma: a rare entity. Arch Pathol Lab Med. 2017; 141:862–866.
Article
10. Kang HC, Menias CO, Gaballah AH, Shroff S, Taggart MW, Garg N, et al. Beyond the GIST: mesenchymal tumors of the stomach. Radiographics. 2013; 33:1673–1690.
Article
Full Text Links
  • JKSR
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2024 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr