Why the study?
Subcutaneous Ewing sarcoma is very rare.
18F-FDG PET/CT successfully identified recurrent subcutaneous Ewing sarcoma in a patient presenting with a new mass.
May support 18F-FDG PET/CT for recurrent Ewing sarcoma detection; leaves open prospective validation in larger cohorts.
Subcutaneous Ewing sarcoma is very rare. This report presents the case of a 23-year-old woman with a history of primary subcutaneous Ewing sarcoma who recently found a gradually increasing mass. Recurrent subcutaneous Ewing sarcoma was thus suspected. 18F-FDG PET/CT was performed and showed an FDG-avid mass in her buttocks. Subsequent histopathological and immunohistochemical tests were consistent with subcutaneous Ewing sarcoma.
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Wu et al. (2021) studied this question.
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