Non-neoplastic or metabolic disease
Giant cystic arachnoid granulations

Topic Completed: 1 June 2012

Revised: 27 December 2018

Copyright: (c) 2003-2018,, Inc.

PubMed Search: Giant cystic arachnoid granulations

Dariusz Borys, M.D.
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Table of Contents
Definition / general
Cite this page: Borys D Giant cystic arachnoid granulations. website. Accessed May 29th, 2020.
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)
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