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  • Title: [Pulmonary hemangiopericytoma preoperatively diagnosed as mediastinal tumor; report of a case].
    Author: Kita Y, Nogimura H, Yasuda S, Ozawa Y, Kato M, Hasegawa H, Suzuki K, Kazui T.
    Journal: Kyobu Geka; 2005 Mar; 58(3):251-4. PubMed ID: 15776748.
    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.
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