title: Sinonasal hemangiopericytoma of the middle turbinate: a case report and brief review of the literature.
abstract: Hemangiopericytomas (HPCs) are rare vascular neoplasms that arise from the pericytes of Zimmerman. They account for 2-3% of all soft tissue sarcomas in humans and they occur mainly in the musculoskeletal system. 15 to 30% of all HPCs occur in the head and neck region. Only 5% are located in the sinonasal region, where they display a more benign behaviour than in other parts of the body. We will describe a case of a right-sided HPC, in the posterior third of the middle turbinate. We will also discuss the epidemiology, the macro- and microscopical characteristics, the clinical and pathological findings and the treatment of this particular neoplasia.
authors.affiliation: Otorhinolaryngology, Head and Neck Surgery Department, AHEPA University Hospital, Thessaloniki, Greece.
authors.forename: N
authors.initials: N
authors.lastname: Angouridakis
authors.forename: T
authors.initials: T
authors.lastname: Zaraboukas
authors.forename: J
authors.initials: J
authors.lastname: Vital
authors.forename: V
authors.initials: V
authors.lastname: Vital
mesh_terms: D006393:Hemangiopericytoma / Q000150:complications / Q000473:pathology* / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015508:Nasal Obstruction / Q000209:etiology; D010255:Paranasal Sinus Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery*; D014420:Turbinates / Q000473:pathology* / Q000601:surgery*