title: [Clinical and histopathological features of hemangiopericytoma-like tumor of the nasal cavity].
abstract: A 65-year-old woman consulted our hospital complaining of left nasal obstruction. On nasal examination, a reddish half round tumor arising from the left nasal septum was found. We removed the tumor together with normal septal mucosa. Histologically, the tumor was diagnosed as a hemangiopericytoma-like tumor. It has been reported that a hemangiopericytoma-like tumor is microscopically distinguished from similar type tumors arising from other sites of the body. The most notable microscopic features of intranasal hemangiopericytoma-like tumors are their uniformity of cells and the absence of nuclear or cytoplasmic pleomorphism with a sheetlike arrangement, and no evidence of varying growth phases or necrosis. This is the second case report of this type of tumor in Japan.
authors.affiliation: Yokosuka City Hospital.
authors.forename: Y
authors.initials: Y
authors.lastname: Iguchi
authors.forename: Y
authors.initials: Y
authors.lastname: Ogawa
authors.forename: K
authors.initials: K
authors.lastname: Yamamoto
authors.forename: A
authors.initials: A
authors.lastname: Itoh
authors.forename: M
authors.initials: M
authors.lastname: Okamoto
authors.forename: T
authors.initials: T
authors.lastname: Koshino
authors.forename: Y
authors.initials: Y
authors.lastname: Mochizuki
mesh_terms: D000368:Aged; D005260:Female; D006393:Hemangiopericytoma / Q000473:pathology*; D006801:Humans; D009296:Nasal Cavity; D009669:Nose Neoplasms / Q000473:pathology*