Primary Synovial Sarcoma of the Lung With Rapid Progression in an Old Age Female

Abstract

Synovial sarcoma comprises approximately 10% of soft tissue sarcomas. Primary pulmonary synovial sarcoma is a rare tumor. It makes up only 0.5% of all primary lung malignancies. It typically presents in adolescents and young adults. The usual progress of the tumor is unknown. We report the rapid progress of a primary pulmonary sarcoma that developed in a 67-year-old woman. In this case, metastatic sarcoma was excluded by positron emission tomography-computed tomography. Synovial sarcoma was histologically confirmed by a biopsy from the lung tissue. The patient had two masses located at the upper lobe of the lung. The patient refused all medical treatment and left our hospital. Two months later, she was readmitted and diagnosed with multiple metastases in the other lung and pancreas. She expired due to syndrome of inappropriate antidiuretic hormone secretion and superior vena cava syndrome four days after admission.