Cytomegalovirus encephalitis: Undescribed diffusion-weighted imaging characteristics. Original aspects of cases extracted from a retrospective study, and from literature review

Subependymal and periventricular punctiform restricted diffusion lesions in the setting of meningoencephalitis in immunocompromised patients seem highly evocative of CMV encephalitis. The diffusion sequence probably reveals focal lesions constitutive of cellular viral inclusions.