Cerebrospinal fluid (CSF) is formed by Choroid plexuses and reabsorbed through arachnoid granulations.
What are arachnoid Granulations?
Arachnoid granulations (AGs) are tufts of arachnoid membrane invaginated into the dural sinuses through which cerebrospinal fluid (CSF) enters the venous system.
The lesions are primarily located in the parasagittal region along the superior sagittal sinus[1], which is occasionally seen at the transverse sinus.