Non-neoplastic or metabolic disease
Giant cystic arachnoid granulations

Author: Dariusz Borys, M.D. (see Authors page)

Revised: 5 October 2016, last major update June 2012

Copyright: (c) 2003-2016,, Inc.

PubMed Search: Giant cystic arachnoid granulations
Table of Contents
Definition / general
Cite this page: Giant cystic arachnoid granulations. website. Accessed December 15th, 2018.
Definition / general
  • Arachnoid granulations are pathway for drainage of cerebrospinal fluid from subarachnoid space into dural venous sinus system
  • Typically produce small, well defined indentations of inner table of skull
  • Giant cystic arachnoid granulations may present as destructive appearing osteolytic lesions, with CSF containing cysts (Hum Pathol 1993;24:438)