title: Hemangiopericytoma of the parotid gland: a case report.
abstract: Hemangiopericytomas are uncommon neoplasms of vascular origin that mostly arise from extremities, retroperitoneum, and pelvic fossa. They are rarely found in the parotid gland. A 35-year-old female patient presented with a swelling in the right preauricular region. Fine-needle aspiration biopsy performed twice yielded an extraordinary amount of blood. A cytological diagnosis could not be made. Computed tomography showed a homogenous, well-shaped mass in the parotid gland. Superficial parotidectomy was performed. Histopathological diagnosis was made as hemangiopericytoma. No evidence for local recurrence or distant metastasis was seen within a follow-up of 36 months.
authors.affiliation: Department of Otolaryngology, Cerrahpaşa Medicine Faculty of Istanbul University, Istanbul, Turkey.
authors.forename: Fatih
authors.initials: F
authors.lastname: Oktem
authors.forename: Emin
authors.initials: E
authors.lastname: Karaman
authors.forename: Aydin
authors.initials: A
authors.lastname: Mamak
authors.forename: Süleyman
authors.initials: S
authors.lastname: Yilmaz
authors.forename: Sibel
authors.initials: S
authors.lastname: Erdamar
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006393:Hemangiopericytoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D006801:Humans; D010307:Parotid Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed