title: Giant suprasellar varix: an unusual cause of chiasmal compression.
abstract: A 63-year-old woman developed visual field defects consistent with lateral compression of the optic chiasm. The cause of the compression was found to be a giant venous varix formed by the dilatation of the outflow vein from a dural arteriovenous fistula located in the superior petrosal sinus. After embolization and surgical obliteration of the fistula, the patient's visual function improved markedly.
authors.affiliation: Department of Neurological Surgery, School of Medicine, University of California, San Francisco.
authors.forename: S
authors.initials: S
authors.lastname: Mirabel
authors.forename: B
authors.initials: B
authors.lastname: Lindblom
authors.forename: V V
authors.initials: VV
authors.lastname: Halbach
authors.forename: W F
authors.initials: WF
authors.lastname: Hoyt
mesh_terms: D001164:Arteriovenous Fistula / Q000150:complications / Q000628:therapy; D003251:Constriction, Pathologic / Q000209:etiology; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D008636:Mesencephalon / Q000098:blood supply*; D008875:Middle Aged; D009897:Optic Chiasm; D012658:Sella Turcica; D014648:Varicose Veins / Q000150:complications*; D014786:Vision Disorders / Q000209:etiology*; D014792:Visual Acuity