Middel Fossa Arachnoid Cyst (MFAC) Rupture

Abstract

Arachnoid cysts are congenital, CSF filled intraarachnoid lesions.  These are incidental on routine brain imaging.  However, they may present with spontaneous or post traumatic rupture associated with subdural hygroma, hematoma or intracystic hemorrhage.  We describe a case of a child referred for CT brain who presented at our institute with status post trauma and demonstrated left middle fossa arachnoid