Figure 4: Representative photographs of (A) brains and (B) lung tissue of BALB/c mice with CNS-TB along with control at 30 and 50 days post-infection. Lungs and brains of both mice groups were visually examined for pathological changes compared to control. Lungs of mice with CNS-TB showed gross reduction in pathology at 50 days with progress in infection. Brains of infected mice showed swelling on left hemisphere which progressively increased with development of infection at 50 days. Arrows indicate gross lung and brain pathology in mice with CNS-TB.