title: Endoscopically-assisted resection of a choroid plexus vascular malformation traversing the cerebral aqueduct: technical case report.
abstract: OBJECTIVE
  We report a case of a choroid plexus vascular malformation of the cerebral aqueduct, third, and fourth ventricles of an adolescent female that was resected with endoscopic assistance.
  
  
  METHODS
  A 14-year-old girl presented with a 1-week history of headaches and emesis. A noncontrasted computed tomographic scan of the head demonstrated enlarged lateral and third ventricles. Subsequent magnetic resonance imaging scans with and without contrast revealed an enhancing mass originating in the third ventricle, traversing the cerebral aqueduct, and terminating in the fourth ventricle.
  
  
  RESULTS
  We used a suboccipital approach to remove the vascular malformation after endoscopically disconnecting it from its feeding and draining vessels in the third ventricle. Total excision was performed. Postoperative magnetic resonance imaging scans and arteriograms confirmed complete resection of the vascular malformation.
  
  
  CONCLUSIONS
  Choroid plexus vascular malformations can exist intraventricularly and can be confused with a neoplasm. Resection of these intraventricular lesions can be performed with endoscopic assistance.
authors.affiliation: Department of Neurosurgery, University of Wisconsin Hospital and Clinics, Madison, Wisconsin 53792, USA.
authors.forename: Roham
authors.initials: R
authors.lastname: Moftakhar
authors.forename: M Shahriar
authors.initials: MS
authors.lastname: Salamat
authors.forename: Soner
authors.initials: S
authors.lastname: Sahin
authors.forename: Bermans J
authors.initials: BJ
authors.lastname: Iskandar
mesh_terms: D000293:Adolescent; D020785:Central Nervous System Vascular Malformations / Q000473:pathology / Q000601:surgery*; D002535:Cerebral Aqueduct / Q000473:pathology* / Q000601:surgery; D002831:Choroid Plexus / Q000473:pathology* / Q000601:surgery; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods