Mayo Clinic Case M10 (see Tables), a male in his 30s. Neuropathological gross examination consistent with encephalitis-associated brain swelling causing transtentorial uncal herniation (A) and associated with acute hemorrhages (arrows A inset, and in B and C). Microscopic examination of semiadjacent temporal lobe sections show microscopic hemorrhage (D; H & E stain) and neuropil infiltration w and B-lymphocytes and macrophages (E-G)