A primary pulmonary artery chondrosarcoma manifesting as acute pulmonary embolism.

Primary cardiac malignancies are rare, and the majority are benign. Malignant tumors are often found to be sarcomas arising from structural cells such as muscle, connective tissue, and blood vessels. We report a case of a 62-year-old woman who presented with pulmonary embolism secondary to a primary pulmonary artery chondrosarcoma. Radical resection with curative intent was impossible, but partial resection and reconstruction of the pulmonary main stem was performed. The remaining tumor was treated with adjuvant chemotherapy. A positron emission tomography-computed tomography scan 6 months postoperatively showed a nearly complete remission.