Parenchymal cerebrospinal fluid extravasation as a complication of computerized tomography. Case report.

A case is presented in which neurological deterioration occurred during a computerized tomographic study. Total hemispheric dysfunction was seen in a patient with a postoperative suboccipital pseudomeningocele, whose head was wrapped in a compressive water bag. Cerebrospinal fluid was forced under pressure into the parenchyma of the right hemisphere, around a ventricular catheter. The neurological dysfunction resolved promptly with shunting.