A case of extraosseous Ewing sarcoma diagnosed by EUS-FNA for a pancreatic tail mass

Le résumé fourni par la source

A woman in her 50s visited another hospital because of a left lower abdominal mass. CT showed masses in the pancreatic tail and lower left abdomen, and she was referred to our hospital. Contrast-enhanced CT showed masses in the pancreatic tail, left lower abdomen, and right lower abdomen, and heterogeneous contrast enhancement was observed in all masses. Percutaneous biopsy of the pelvic mass and EUS-FNA of the pancreatic mass were performed. As a result, she was diagnosed as Ewing sarcoma originate from the iliopsoas muscle with pancreatic metastasis. This was a rare case, as there has been no other report in which pancreatic metastasis of extraosseous Ewing sarcoma was diagnosed using EUS-FNA.

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