Herpesviruses are one of the most common groups of pathogens causing central nervous
system infections in humans. They mostly cause encephalitis, meningitis, or myelitis in
immunocompetent and immunocompromised patients. Children, adults, and the elderly can
all be affected. Although contrast-enhanced CT is more widely used for diagnosis, contrast-
enhanced MR imaging combined with diffusion-weighted imaging is superior to CT in the
detection of early changes and the real extent of the disease, and in assessing prognosis …