Intracranial cerebral herniations occurring in 420 brains from consecutive necropsies are studied. They were present in 65 brains; in 23 there was secondary lesions in the upper brainstem. Temporal herniations in one or both sides, was the most frequent finding. Terminal anoxia is believed to be one of the most important factors. There was decrease of the secondary lesions of the brainstem after 60 years of age.