[Role of craniocerebral trauma in the development of Alzheimer's disease].

The report deals with a clinico-anatomical description of 3 cases of Alzheimer's disease, developing after a brain trauma. The evolution of the disease justifies the question concerning the role of traumas in the pathogenesis. The atrophical process, lying at the basis of the disease is considered in the aspect of the aging of the colloid brain system under the influence of a mechanical action of a trauma.