Primary clear cell sarcoma of soft tissue (CCSST) arising from the pleura is an infrequent occurrence. with only two cases reported in the English literature. We report a rare case of pleural CCSST with unusual clinical features and unconventional morphology. A 68-year-old man presented with a large right pleural effusion that developed following a dental abscess. https://www.extrabutternyers.shop/product-category/tech/