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Arachnoid granulation

Case contributed by Bruno Di Muzio
Diagnosis certain

Presentation

Ignored.

Patient Data

Age: 75 years
Gender: Male

Arachnoid granulation

ct

Arachnoid granulation promoting a filling defect in the left sigmoid sinus. 

Case Discussion

Arachnoid granulations are small protrusions of the arachnoid through the dura mater in the dural sinuses and through which the CSF enters the venous system. 

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