[Anatomic-topographic peculiarities of sub- and supratentorial petroclival meningiomas].

The data about anatomic-topographic peculiarities of petroclival sub- and supratentorial meningiomas were presented. There were operated on 24 patients, of them 5 have died. Three main topographoanatomic variants were delineated, depending on the tumor primary origin and topographic peculiarities present. The most frequent variant of the tumor localization was a lower one. Depending on the variant of the tumor localization present, the peculiarities of interrelationship between the tumor and nerves, vessels and the brain stem are determined.