[Importance of trigeminal artery persistance in the pathogenesis of cerebrovascular disturbances (author's transl)].

The persistence of the primitive trigeminal artery was detected in a male who had complained of a paresthetic attack in the tongue and in the right part of the body, followed by long-lasting dizziness. The vascular changes connected with this anomaly were similar, in our case, to those reported in the literature. They show that the persistence of carotido-basilar anastomosis may be combined with a defective development in both circulatory systems. The subjective and objective symptomatology reported, in such cases, appears under multiple aspects, as either the carotid circulation or the vertebro-basilar circulation may be involved. In our case, the symptomatology started when the patient was 57 years old, i.e. during the 6th decade of his life, exactly like the other cases reported in literature.