Extraskeletal Ewing Sarcoma of the Abdominopelvic Cavity Revealed by 18 F-FDG PET/CT.

Li, Yanmei; Lyu, Zhehao; Lan, Xingrong; Zhang, Ziyue; Gao, Huiqi · Clin Nucl Med · 2025

case_report · Level V

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Abstract

Extraskeletal Ewing sarcoma in the abdominopelvic cavity is a relatively rare tumor. We reporte 18 F-FDG PET/CT findings of primary peritoneal Ewing sarcoma in a 36-year-old man. The patient complained of abdominal distension for over a month. 18 F-FDG PET/CT has shown increasing glucose metabolism uptake in the peritoneum, greater omentum, lesser omentum, and mesentery, which was confirmed as extraskeletal Ewing sarcoma.

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