Flavivirus encephalitis

Flavivirus encephalitis includes a number of entities which characteristically involve the basal ganglia and thalami

Typically these conditions present with a prodrome which is nonspecific but indicative of a viral infection. Symptoms include fever, myalgia, rash, rigours and/or headache. Eventually CNS symptoms develop, which include dystonia, dyskinesia, tremor drooling, dysarthria and/or seizures 1.

There are over 70 Flaviviruses. The most important include:1-3

MRI is the modality of choice to evaluate all types of encephalitis.

Although the pattern of involvement varies from agent to agent, in general, sites of involvement include 1:

Infections of the central nervous system
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Article information

rID: 13100
Synonyms or Alternate Spellings:
  • Flavivirus encephalitis

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Cases and figures

  • FLAIR axial image...
    Case 1: Japanese encephalitis
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