Bony variations in the cerebral aspect of petromastoid part of adult Egyptian temporal bones

ABSTRACT

Objective: To illustrate different bony variations in the cerebral aspect of the petromastoid part of temporal bone. These variations were either in the mastoid emissary foramina, or in unlabelled bony projections 0r notches related to the superior petrosal and sigmoid sulci 0r sinuses. T0 the best of our knowledge these variations have not been reported before in Egyptians and may be ofsurgical importance