Mutevelizade, GSayit, E2024-07-182024-07-180928-12581878-6820http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/4445Synovial sarcoma (SS) is a mesenchymal tumor which generally affects the soft tissues of the extremities. Primary pleural synovial sarcoma (PPSS) is a very rare and aggressive subtype of SS. A 73-year-old male patient presented with chest-back pain and dyspnea. Hypermetabolic diffuse pleural lesions were detected in 18F-FDG PET/CT performed after pleural nodular thickenings were observed on CT. As the result of the molecular analysis performed in the excisional biopsy, SYT-SSX mutation was detected and the patient was diagnosed as SS. Pazopanib treatment was commenced. We are reporting a very rare case of PPSS with diffuse pleural involvement. @ 2023 Elsevier Masson SAS. All rights reserved.EnglishTOMOGRAPHYArticle