Primary Extraosseous Ewing Sarcoma on 18 F-FDG and 68 Ga-FAPI-04 PET/CT.

Tao, Yi; Wang, Feifei; Yan, Jiao; Chen, Zhengguo; Wu, Chunyan · Clin Nucl Med · 2025

case_report · Level V

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Abstract

Primary extraosseous Ewing sarcoma of the nasal cavity is rare. A 17-year-old man underwent 18 F-FDG and 68 Ga-FAPI-04 PET/CT for a nasal mass. The mass showed avid FDG uptake but weak FAPI uptake. Endoscopic endonasal biopsy confirmed the diagnosis of Ewing sarcoma.

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