At the anterolateral border the tentorium is attached to the petrous ridge, where it separates to include the superior petrosal sinus. The posterolateral border is attached to the temporal and occipital bones and includes the transverse sinus and the torcular. The medial borders are free and form the margins of the tentorial incisura. They join posteriorly at the midline, at the apex of the tentorium, and, immediately behind this, the tentorium fuses with the falx. The falx-tentorial junction contains the straight sinus, draining Galen’s vein and the inferior sagittal sinus.
KeywordsLymphoma Meningioma Hydrocephalus Dura Medulloblastoma
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