title: Hemangiopericytoma of the sciatic notch presenting as sciatica in a young healthy man: case report.
abstract: A case of hemangiopericytoma of the sciatic notch presenting with sciatica in a healthy 33-year-old man is presented. Tumors of the sciatic notch are exceedingly rare, and few data pertaining to the entity are found in the literature. A few series have been published on neurogenic tumors of the sciatic nerve, and one series of hemangiopericytomas mentions a case in which the sciatic nerve in the thigh is involved with tumor. To our knowledge, this is the first case in the literature detailing a hemangiopericytoma spanning the sciatic notch. Hemangiopericytomas are well known to neurosurgeons as durally based lesions and have been categorized as a subtype of meningioma. However, hemangiopericytomas are vascular sarcomas that most commonly occur in the pelvis and thigh. A brief discussion of the symptoms of sciatic notch lesions and hemangiopericytomas is included.
authors.affiliation: Division of Neurosurgery, David Grant United States Air Force Medical Center, Travis Air Force Base, California, USA.
authors.forename: M J
authors.initials: MJ
authors.lastname: Harrison
authors.forename: H T
authors.initials: HT
authors.lastname: Leis
authors.forename: B A
authors.initials: BA
authors.lastname: Johnson
authors.forename: W D
authors.initials: WD
authors.lastname: MacDonald
authors.forename: C D
authors.initials: CD
authors.lastname: Goldman
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging; D006393:Hemangiopericytoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008297:Male; D010524:Peripheral Nervous System Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D012584:Sciatic Nerve / Q000473:pathology / Q000601:surgery*; D012585:Sciatica / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*