Synovial sarcoma (SS) is a malignant mesenchymal tumor with variable epithelial
differentiation that affects mostly young adults and can arise at any anatomic site. Primary
intrathoracic SS is very rare accounting for< 0.5% of all lung tumors. Most commonly, it
arises from the lung followed by pleura and mediastinum. Primary pulmonary SS (PPSS)
affects both sexes equally with no preference for any hemithorax. The morphology,
immunostaining properties, cytogenetic features, and management strategy of PPSS are …