Abstract
1) The precentral cerebellar vein begins between the lingula and the central lobe and runs upwards behind the anterior medullary velum in midline.
2) The normal course and configuration of this vein was described. The minimal distance from this vein to the posterior aspect of the clivus averaged 38 mm with a range of 31 to 43 mm as measured in 40 normal cases.
3) The deformities and displacement of this vein indicate the changes in the aqueduct and the upper part of the fourth ventricle caused by tumors of mesencephalon, pons and cerebellum.
4) Diagnostic value of this vein is highly evaluated in the vertebral angio-graphy by the authors.
