[Cerebrospinal fluid studies in acoustic neurinoma].

The author examined 506 operated upon patients for unilateral neurinoma of the acustical nerve of a different size. The content of the protein in the CSF was in a direct correlation with the size of the tumor and degree of involvement into the pathological process of the vessels in the brain structures, adjacent to the tumor. A disturbance in the permeability of the CSF spaces was determined by the size of the tumor node.