TOPIC: Lung Cancer TYPE: Medical Student/Resident Case Reports INTRODUCTION: Synovial sarcomas (SS) are a rare group of malignancies, seen in 0.17 per 100,000 persons, accounting for 7% all soft tissue sarcomas. These malignant tumors most commonly present as tumor the extremities. While they have high propensity metastasis to bone and lung, primary intrathoracic malignancy is rare. We case pat...