title: Spontaneous development of a de novo suprasellar arachnoid cyst. Case report.
abstract: Arachnoid cysts are commonly thought to arise from either congenital defects or trauma. In this article the authors report the spontaneous development of a suprasellar third ventricular arachnoid cyst whose origin was not clearly congenital or traumatic. At the age of 4 months, the patient presented with hypertonia, and a magnetic resonance (MR) imaging study showed no abnormalities. At the age of 2 years, the boy presented with headaches and projectile emesis, symptoms that prompted further imaging studies. An MR image of the brain revealed a suprasellar cyst and obstructive hydrocephalus. The cyst was endoscopically fenestrated, which led to long-term symptom resolution.
authors.affiliation: Department of Neurological Surgery, University of Wisconsin, Madison, Wisconsin 53792, USA.
authors.forename: Aaron F
authors.initials: AF
authors.lastname: Struck
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Murphy
authors.forename: Bermans J
authors.initials: BJ
authors.lastname: Iskandar
mesh_terms: D016080:Arachnoid Cysts / Q000209:etiology* / Q000473:pathology / Q000601:surgery*; D002675:Child, Preschool; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology / Q000601:surgery; D008297:Male