title: Retrorectal hemangiopericytoma: a case report.
abstract: Hemangiopericytoma is a rare, vascular soft tissue tumour originating from the pericytes, the contractile cells that surround capillaries. A case of retrorectal hemangiopericytoma in a 49-year-old woman is reported. With a posterior sagittal approach, the tumour was completely removed. Pathological examination, including immunohistological stains, was consistent with a hemangiopericytoma. A step-by-step approach to a retrorectal tumour is exemplified, and a very rare pathological entity is added to the spectrum of retrorectal masses.
authors.affiliation: Department of Surgery, Colorectal Surgery Unit, Gazi University Medical School, Ankara, Turkey. sezaileventoglu@hotmail.com
authors.forename: S
authors.initials: S
authors.lastname: Leventoglu
authors.forename: B B
authors.initials: BB
authors.lastname: Menteş
authors.forename: O
authors.initials: O
authors.lastname: Kurukahvecioğlu
authors.forename: M
authors.initials: M
authors.lastname: Oğuz
authors.forename: G
authors.initials: G
authors.lastname: Barit
authors.forename: O
authors.initials: O
authors.lastname: Uluoğlu
mesh_terms: D005260:Female; D006393:Hemangiopericytoma / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000473:pathology* / Q000601:surgery