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Bone

Non-neoplastic or metabolic disease

Giant cystic arachnoid granulations


Reviewers: Dariusz Borys, M.D. (see Reviewers page)
Revised: 7 June 2012, last major update June 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

General
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● 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)

End of Bone > Non-neoplastic or metabolic disease > Giant cystic arachnoid granulations


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