Superior surface of cerebellum

The superior surface of the cerebellum (also called the tentorial surface) is a convex area that faces the tentorium cerebelli (a fold of dura mater that separates the cerebellum from the cerebrum). This surface is relatively smooth compared to the intricate inferior surface and the midline vermis (a worm-like structure) is continuous with the cerebellar hemispheres on this surface. Anatomically, it serves as a critical surgical landmark for accessing lesions in the pineal region and superior cerebellar hemispheres, with a comprehensive understanding of its complex, highly folded structure (the cortex, which contains more neurons than the rest of the brain combined) and vascular supply (primarily the superior cerebellar artery) being essential for neurosurgeons and radiologists to avoid vital neural or vascular damage.