Abstract
Primary synovial sarcoma of the pleura (PSSP) is a rare disease. The present study reported the case of a patient (male; age, 18 years) with two tumors (7.8×2.8 cm and 6.5×5.8 cm) treated with surgery and chemotherapy. To the best of our knowledge, this is the first reported case of two tumors diagnosed as PSSP, which was confirmed by immunohistochemical staining. After six months of follow-up, the symptoms of dry cough and wheezing disappeared and all of the laboratory results were within normal limits. PSSP requires clinical suspicion combined with strategic diagnostic evaluation to confirm the diagnosis and a comprehensive treatment program based on surgery and assisted by chemotherapy.