Primary Pancreas Ewing Sarcoma with Gastric Invasion: A Case Report.

Authors

Su Min Park, Sungjun Hwang, So Yeun Park, Jung Wook Seo

Published in

Journal of the Korean Society of Radiology. Volume 87. Issue 4. Pages 724-729. Epub Jul 22, 2026.

Abstract

Extraosseous Ewing sarcoma (ES) is a rare malignant tumor with poor prognosis. ES of pancreatic origin is exceedingly rare, with only a few dozen cases documented in the literature. It is a poorly differentiated, aggressive tumor characterized by multiple recurrences and a relatively poor prognosis. Owing to nonspecific imaging findings, it can easily be misdiagnosed as other tumors. Here, we report a case of primary pancreatic ES with direct gastric invasion in a 63-year-old male who presented with melena and summarize previously reported cases of primary pancreatic ES. Radiologists should be aware of the imaging findings of primary pancreatic ES and understand that it may be clinically confused with other tumors because of overlapping imaging features.

PMID:
42568858
Bibliographic data and abstract were imported from PubMed on 08 Aug 2026.

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