Figure 3. Diffusion-weighted image shows no restriction of diffusion.
Figure 4A. MR venography shows normal venous sinuses.
Figure 4B. MR venography shows normal venous sinuses.
Figure 4C. MR venography shows normal venous sinuses.
Viral encephalitis is the result of a central nervous system infection by a number of different viruses.
The most common cause of viral encephalitis is herpes simplex virus.
Etiology includes herpes virus family and Eastern equine encephalitis.
Etiology includes Flavivirus encephalitis and HIV.
Systemic and metabolic abnormalities often involve the basal ganglia or thalamus on both sides, and careful assessment of brain abnormalities occurring simultaneously outside these structures is important.
Differential diagnoses include toxic poisoning and liver disease.