Figure 1. A - Gross appearance of the brain, showing thickened meninges with purulent exudate deposition. Photomicrography of the meninges; B - Thickened meninges with an intense acute inflammatory exudate (H&E, 100X); C - Marked acute inflammatory infiltrate with superficial involvement of the cerebral cortex, besides local hemorrhage (H&E, 100X); D - Presence of bacterial colonies intermingled with a meningeal acute inflammatory infiltrate (H&E, 400X).