Developmental defects of the tentorium cerebelli

Abstract

✓ Congenital defects of the tentorium cerebelli were observed in 16 of 90 cadaver cranial cavities examined. These consisted of tentorial dural bands in two, a hole in one case, transverse ridges in eight cases, and an aperture in five cases. In one specimen, the trochlear nerve made a spiral turn around the tentorial band before pursuing its forward course.