Shape and surface structure of the human cerebellum: variant anatomy

Abstract

The aim of the study was to determine the characteristics of individual variability in the shape and external structure of the human cerebellum. Cadaveric material (cerebella and adjacent brainstems of 100 people) was studied. We proposed a comprehensive method for evaluating the cerebellar shape in the morphometry of anatomical specimens, which involves measuring linear dimensions (width, length, and height) and calculating relative parameters, which describe cerebellar shape by the ratio of one dimension to the other two: relative width of the cerebellum (rW), relative length of the cerebellum (rL), and relative height of the cerebellum (rH). The magnitude of the relative parameter determines its contribution to the shape and surface structure of the cerebellum. The combination of relative parameters ultimately defines the characteristics of the shape and surface structure of the cerebellum, which were described in this study.