title: Primary hemangiopericytoma of the superior mediastinum: a case report.
abstract: We present a case of hemangiopericytoma arising in the superior mediastinum. A 48-year-old man demonstrated a superior mediastinal mass lesion on chest x-ray and was admitted to our hospital. A CT scan of the chest showed a well-circumscribed, heterogenously-enhanced mass, 7.0 x 6.5 x 6.5 cm in size, located in the right superior posterior mediastinum, compressing the trachea. The tumor was extirpated by surgical resection. Based on the histological findings, electron microscopic findings, and immunohistochemical studies, the tumor was diagnosed as hemangiopericytoma.
authors.affiliation: Department of Surgery, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, USA.
authors.forename: A
authors.initials: A
authors.lastname: Hayashi
authors.forename: S
authors.initials: S
authors.lastname: Takamori
authors.forename: K
authors.initials: K
authors.lastname: Tayama
authors.forename: M
authors.initials: M
authors.lastname: Mitsuoka
authors.forename: K
authors.initials: K
authors.lastname: Tamura
authors.forename: K
authors.initials: K
authors.lastname: Shirouzu
authors.forename: K
authors.initials: K
authors.lastname: Fujimoto
authors.forename: J
authors.initials: J
authors.lastname: Watanabe
mesh_terms: D003937:Diagnosis, Differential; D006393:Hemangiopericytoma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D008875:Middle Aged; D019616:Thoracic Surgical Procedures; D014057:Tomography, X-Ray Computed