Child health · UKMLA & AKT
HSV encephalitis
A free high-yield preview for the UKMLA Applied Knowledge Test. Below are the key points to recognise hsv encephalitis — the full SA Note notes add investigations, management, complications and 10 practice questions.
Key high-yield points
- Most common cause of sporadic infectious encephalitis worldwide
- HSV-1 causes focal temporal/frontal lobe encephalitis in children >3 months and adults (~95%)
- HSV-2 causes diffuse encephalitis in neonates (<3 months), acquired during delivery
CT showing low-density changes in the anterior and medial temporal lobes bilaterally = HSV encephalitis until proven otherwise. CT may be normal early - MRI is preferred (high T2 signal in medial temporal/inferior frontal lobes).
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