Radiologic evaluation of tuberculous meningitis.

Five cases of primary tuberculous meningitis are presented. In three cases of acute meningeal process, the classic computed tomographic (CT) scan findings of basal meningeal enhancement, hydrocephalus and arteritis on angiography were found. These radiologic findings suggested the diagnosis, and antituberculosis treatment was therefore instituted at an early stage of the disease. In the remaining two cases with late complication of tuberculous meningitis, hydrocephalus and basal vessel arteritis were present. The importance of correlation of the clinical and radiographic findings is discussed.