title: [Pulmonary hemangiopericytoma preoperatively diagnosed as mediastinal tumor; report of a case].
abstract: An asymptomatic 67-year-old female was admitted because of an abnormal shadow on chest X-ray. Computed tomography (CT) revealed that a well-marginated round mass with low density, about 4 cm in diameter, was located in the right hilum. The border was enhanced at contrast material-enhanced CT. Magnetic resonance imaging (MRI) [T2-weighted] showed the lesion as a high intensity tumor. Because of the extra-pleural sign on CT and normal results of broncho-fiberscopic (BFS) examination, mediastinal tumor was suspected. We performed thoracoscopic surgery and revealed that the tumor was in lung, not in mediastinum. Biopsy of the easy-bleeding tumor was performed. The histopathological diagnosis was hemangiopericytoma. There was no remarkable change for 1 years. Hemangiopericytomas should be considered in the differential diagnosis of well-marginated masses. Thoracoscopic surgery is the useful methods to diagnose the hemangiopericytoma.
authors.affiliation: Department of Thoracic Surgery, Haibara General Hospital, Shizuoka, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Kita
authors.forename: H
authors.initials: H
authors.lastname: Nogimura
authors.forename: S
authors.initials: S
authors.lastname: Yasuda
authors.forename: Y
authors.initials: Y
authors.lastname: Ozawa
authors.forename: M
authors.initials: M
authors.lastname: Kato
authors.forename: H
authors.initials: H
authors.lastname: Hasegawa
authors.forename: K
authors.initials: K
authors.lastname: Suzuki
authors.forename: T
authors.initials: T
authors.lastname: Kazui
mesh_terms: D000368:Aged; D003951:Diagnostic Errors; D005260:Female; D006393:Hemangiopericytoma / Q000175:diagnosis*; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis*; D008479:Mediastinal Neoplasms / Q000175:diagnosis; D013906:Thoracoscopy