title: Isolated paramedullary hemangioblastoma originating from the first cervical nerve root: case report.
abstract: METHODS
  A retrospective case of an isolated paramedullary hemangioblastoma originating from the first cervical root is reported.
  
  
  OBJECTIVE
  To describe an uncommon type of spinal hemangioblastoma and its operative treatment.
  
  
  BACKGROUND
  Spinal hemangioblastoma, rare finding accounting for approximately 1.5% to 2.5% of all spinal cord tumors, may have an intramedullary, extramedullary, or extradural location. Cervical hemangioblastomas occur in approximately 45% of the cases and are intramedullary in about 83% of the cases.
  
  
  METHODS
  A 59-year-old man presented with acute subarachnoid hemorrhage in the basal cisterns. Four-vessel angiography showed a highly vascular small tumor at the dorsolateral side of the cervicomedullary junction fed by a branch of the vertebral artery. The lesion was surgically removed.
  
  
  RESULTS
  Total removal of the lesion was achieved after identification of both the arterial feeder and the draining vein with the aid of microvascular Doppler sonography. There were no complications, and the patient did well after surgery.
  
  
  CONCLUSIONS
  Although hemangioblastomas occurring in the cervicomedullary area usually may cause progressive neural compression, occasionally they also can present clinically as acute subarachnoid hemorrhage. This situation requires urgent and adequate treatment as in the reported case.
authors.affiliation: Department of Neurosurgery, Philipps University, Marburg, Germany. bertalan@ post.med.uni-marburg.de
authors.forename: Helmut
authors.initials: H
authors.lastname: Bertalanffy
authors.forename: Hans-Dieter
authors.initials: HD
authors.lastname: Mennel
authors.forename: Ludwig
authors.initials: L
authors.lastname: Benes
authors.forename: Thomas
authors.initials: T
authors.lastname: Riegel
authors.forename: Hisham
authors.initials: H
authors.lastname: Aboul-Enein
mesh_terms: D000208:Acute Disease; D018325:Hemangioblastoma / Q000150:complications / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D013120:Spinal Cord Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery; D013126:Spinal Nerve Roots / Q000473:pathology*; D013345:Subarachnoid Hemorrhage / Q000209:etiology