Restricted Diffusion of the Splenium of the Corpus Callosum in Viral Meningitis

摘要

Infarcts of the corpus callosum are rare. This may be due to the rich blood supply of the corpus callosum which includes the anterior and posterior cerebral arteries and the anterior communicating arteries.1 Sometimes, imaging findings suggestive of acute stroke can in fact be related to nonprimary stroke radi-ologic mimics such as an infectious process. Moreover, not every hyperintensity on diffusion-weighted imaging (DWI) sequence of magnetic resonance imaging is due to acute stroke. Brain abscess, neoplasm, acute demyelinating plaque, encephalitis, epilepsy, and hypoglycemia can result in the hyperintense signal on DWI.