Cerebrovascular accident (CVA) is the most common cause of neurologic disorder accompanying grave prognosis and its mortality above 50%. Prior to introduction of the CT. the diagnosis have been depended on clinical findings and spinal puncture. Rddiologic diagnostic methods, such as angiography, ventriculography and radioisotope scanning are invasive and less sentitive in diagnosis CVA the CT. The size, location and extension of the intracranial pathology and ventricular penetration are accureately and rapidly portrayed by CT. Consequently, CT plays inportant role in effective treatment and evaluation of prognosis in CVA. Authors analyzed 63 cases of diagnosed CVA who were performed CT scan in Korea General Hospital from November 1981 to April 1982. The results were as follows. 1. The most prevalent age group of CVA was 6th decade, and then 7th and 5th decades in decreasing order. The sex ratio between male and female was 1.2:1. 2. The causes of CVA were hypertensive hemorrhage (50.8%), vascular occlusive disease (22.2%), aneurysm ruture (4.8%), arteriovenous malformation (3.2%) and hemorrhage of unknown etiology (19.0%). 3. The most common site of hemorrhage was basal ganglia (34.6%), and then thalamus (21.8%) and cerebral lobes (20.5%). In infarction, the common sites were the lobes (64.7%) and the basal ganglia (35.5%). 4. Round or oval shaped hematomas of high density (85.9%) were frequent findings of hemorrhage and mass effect occured in 75.6%. 5. All infarctions were low in density; Most of the lesion was inhomogeneous (70.6%) and the rests were homogeneous. Mass effects were seen in 29.4%.