Althought the most common form of tuberculosis is pulmonary one of the most dangerous forms is that which affects the central nervous systems. The CT is valuable in determining disease locations and extent of brain lesions. One hundred-eight cases of intracranial tuberculosis were studied by CT in Severance and WonJu Chris-tian Hospital from Jan. 1982 to Jun. 1986. 1. The age distribution was broad from 6 months to 68 years. The incidence was the highest in the age group from 0 to 5 and the male to female ratio was 1.2:1. 2 . The common CT findings were obliteration and abnormal enhancement of basal cisterns that were observ-ed in 63 cases(58%) and ventricular dilatation in 56 cases (52%). The single or multiple enhancing nodules denoting tuberculomas were observed in 31 cases that were distributed in cerebral hemisphere brain stem or cerebellum. Eighteen cases of brain infarction were observed and most frequent site of infarction was basal ganglia (14cases). 3. Nineteen cases showed normal findings in CT scan inspite of the intracranial tuberculosis.