Statistics of intracranial midline tumors in children.

Of the 1,280 pediatric brain tumors seen at the Department of Neurosurgery, University of Vienna, until December 1984 57% involved the midline. Midline tumors were supratentorial in 40% of cases and infratentorial in 60%. The distribution of different tumor types in the various anatomical regions follows the known sites of predilection of brain tumors. Orienting diagrams show their rates in numerical terms, in various regions as well as their "clinical" malignancy.