Two cases of solitary fibrous tumor of the pleura (SFTP) with different courses

Abstract

We experienced two cases of solitary fibrous tumor of the pleura (SFTP) with different clinical courses. Case 1: A 54-year-old man had a nodule (30×15mm) in the lower lung field that has not changed for 3years. Thoracoscopic surgery was performed, and a smooth pedunculated tumor was removed. Case 2: A 56-year-old woman had a 62×40mm mass in the middle lung field, which was diagnosed as SFTP. Surgery was not performed, but 4 years later the mass had enlarged to 95×70mm. Thoracoscopic resection with mini-thoracotomy was performed, and a smooth pedunculated tumor was removed. Histologically, Cases 1 and 2 were both benign SFTP arising from the visceral pleura. SFTP should be resected, because tumor behavior cannot be predicted from histological findings. Thoracoscopic surgery is suitable for such pedunculated tumors because it is easy to achieve resection with an adequate surgical margin.