Diffuse Cerebral Edema

  • Etiology: hypoxic ischemic encephalopathy
  • CT: cerebellum higher density than cerebrum
  • MRI: diffuse cortical and basal ganglia restricted diffusion

Cases of Diffuse Cerebral Edema

CT of cerebral edema and subarachnoid hemorrhage
Axial CT without contrast of the brain shows diffuse low density through the bilateral cerebral hemispheres (anteriorly) with a normal density cerebellum (posteriorly) that appears relatively hyperdense when compared to the cerebral density. Subarachnoid hemorrhage was also seen bilaterally in the basal cisterns.