Pacchionian granulation

Last edit by Alaric Steinmetz on

Synonyms: Arachnoidalzotten

Pacchionian granulations are small, button-like protrusions of the Arachnoid mater through the Dura mater into the venous sinuses.

Function

Pacchionian granulations serve to resorb Cerebrospinal fluid.

Neurosurgical relevance

Intraoperative injury to a Pacchionian granulation can lead to severe venous bleeding due to its rich blood supply.

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