title: Surgical management of primary spinal hemangiopericytomas: an institutional case series and review of the literature.
abstract: OBJECTIVE
  Hemangiopericytoma (HPC) is a rare tumor of the central nervous system. Primary spinal occurrence of this tumor is extremely uncommon and cases involving the intramedullary spinal cord are even more rare. The purpose of this study was to explore the clinical features, surgical strategies, outcome and pathology in a consecutive series of patients treated at a single institution.
  
  
  METHODS
  The authors performed a retrospective review of the clinicopathological characteristics of four patients with a pathological diagnosis of spinal HPC.
  
  
  RESULTS
  Four cases with intradural as well as intra/extra-medullary components were identified. Gross total resection with no recurrence at the operative site was achieved in the majority of patients with a spinal HPC. One patient had significant recurrence and eventually, succumbed to the disease.
  
  
  CONCLUSIONS
  Increased awareness of these tumors' capability to occur intradurally and intramedullarly can help surgeons accurately diagnose and choose an effective plan of care. Gross total resection of hemangiopericytomas is the mainstay of treatment and should be pursued if feasible. Histopathology is essential to the diagnosis.
authors.affiliation: Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
authors.forename: Ali
authors.initials: A
authors.lastname: Shirzadi
authors.forename: Doniel
authors.initials: D
authors.lastname: Drazin
authors.forename: Marcus
authors.initials: M
authors.lastname: Gates
authors.forename: Neda
authors.initials: N
authors.lastname: Shirzadi
authors.forename: Serguei
authors.initials: S
authors.lastname: Bannykh
authors.forename: Sergei
authors.initials: S
authors.lastname: Banykh
authors.forename: Xuemo
authors.initials: X
authors.lastname: Fan
authors.forename: Leonel
authors.initials: L
authors.lastname: Hunt
authors.forename: Eli M
authors.initials: EM
authors.lastname: Baron
authors.forename: Wesley A
authors.initials: WA
authors.lastname: King
authors.forename: Terrence T
authors.initials: TT
authors.lastname: Kim
authors.forename: J P
authors.initials: JP
authors.lastname: Johnson
authors.forename: J
authors.initials: J
authors.lastname: Patrick Johnson
mesh_terms: D000328:Adult; D005260:Female; D006393:Hemangiopericytoma / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D019635:Neurosurgical Procedures; D012189:Retrospective Studies; D013120:Spinal Cord Neoplasms / Q000473:pathology / Q000601:surgery*