Synovial sarcoma is a malignant mesenchymal neoplasm that is frequently misdiagnosed due to its slow growth and small size. This tumor presents as a nonspecific heterogeneous mass on cross-sectional imaging. Biopsy and histopathological assessments are required to differentiate synovial sarcoma from other sarcoma subtypes and to define the tumor grade. This article presents the case of a 17-year-old male patient with perineal synovial sarcoma.
Keywords: CD99; Monophasic; Synovial sarcoma.
© 2023 The Authors. Published by Elsevier Inc. on behalf of University of Washington.