Unusual arachnoid cyst involving the third ventricle in an adult: case report

Aaron Pin Chien Ong, Ellen Frydenberg, Michael Rodriguez, Joga Chaganti, Timothy Steel*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Introduction: Intracranial arachnoid cysts are rare in adults. We report a large suprasellar arachnoid cyst involving a third ventricle in a 19 year old male. Case report: A 19 year old male with mild cognitive impairment was admitted after an episode of loss of consciousness (LOC). A type 1 suprasellar arachnoid cyst (SAC-1) was diagnosed on CT (CT) and magnetic resonance (MR) imaging. Endoscopic fenestration was performed. At surgery, the cyst wall was noted to be markedly thickened with prominent vascularity. Histopathology showed thickened and densely fibrotic meninges, an unusual feature for an arachnoid cyst. 36 months after surgery, the patient remains asymptomatic.

Original languageEnglish
Pages (from-to)12-14
Number of pages3
JournalInterdisciplinary Neurosurgery: Advanced Techniques and Case Management
Volume16
DOIs
Publication statusPublished - 1 Jun 2019
Externally publishedYes

Bibliographical note

Copyright the Author(s) 2018. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • Adult
  • Arachnoid cysts
  • Hydrocephalus
  • Intracranial
  • Suprasellar

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