2016 Volume 30 Issue 2 Pages 198-202
A 46-year-old man had a spherical pulmonary tumor located in the right upper lobe on chest CT. No definitive histological diagnosis was obtained with bronchoscopy, and FDG positron emission tomography (PET) showed slight FDG accumulation. However, the tumor increased gradually (to 35 from 23 mm). Therefore, we performed thoracoscopic right upper lobectomy with ND2a-1. Immunohistochemically, the tumor was diagnosed as a solitary fibrous tumor (SFT). Histopathologically, it showed high cellularity and multiple mitoses. We diagnosed it as malignant intrapulmonary SFT. We should consider surgery for tumors that increase in size gradually, even if they are negative for FDG accumulation.
