Authors analysed the CT findings of 28 cerebral palsy patients at Pusan National University Hospital fromJanuary, 1984 to December, 1987. Volumes of hemispheres, lateral ventricles and parenchymes were measured inpatients who showed no remakable abnormality on CT film, and compared with those of normal control group. 1. Amongthe 28 cerebral palsy patients, there were 6 cases of diffuse atrophy in CT findings, and unilateral atrophy in 2cases and encephalomalacia and diffuse white matter low density in 1 case and generalized symmetrical white matterlow density in 1 cases, but remaining 18 cases had no specific abnormal finding on CT. 2. Difference in volumes ofbrain parenchyme and lateral ventricles of each hemisphere was greater than that of control group. 3. There weremore enlarged lateral ventricles and prominent unilateral brain atrophy in 18 cases of cerebral palsy who showedno specific abnormality on CT as compared with normal control group.