Last edit by Alaric Steinmetz on 13.11.2025
Synonyms: Arachnoidalzotten
Pacchionian granulations are small, button-like protrusions of the Arachnoid mater through the Dura mater into the venous sinuses.
Pacchionian granulations serve to resorb Cerebrospinal fluid.
Intraoperative injury to a Pacchionian granulation can lead to severe venous bleeding due to its rich blood supply.
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Article created on 17.08.2026 · Alaric Steinmetz
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