A case of solitary fibrous tumor originated from the pleura of the diaphragm

Abstract

We report a case of solitary fibrous tumor originated from the pleura of the diaphragm. A 76-year-old woman was admitted because of an abnormal shadow on chest X-ray. CT scan revealed a solid giant mass in the right thoracic cavity and she was diagnosed as SFT by needle biopsy. After embolization of the right inferior phrenic artery, which was the main feeding artery to the tumor, operation was performed. The tumor was 21×17×10cm in size and weighed 2070g. Histologically, the tumor was diagnosed as SFT without malignancy. The postoperative course was uneventful, and she was discharged on the 11th day after surgery. The patient has been followed up for 1 year and 9 months with no evidence of reccurence. We experienced a rare case of SFT originated from the pleura of the diaphragm. The tumor is apt to be discovered after becoming giant. MRI was useful for close inspection of the area surrounding the diaphragm.