Post-varicella intracranial haemorrhage in a child

Nasuda Danchaivijitr1, Elena Miravet, Dawn E Saunders

  • 1Department of Radiology, Great Ormond Street Hospital, UK.

Insights

Varicella zoster virus (VZV) infection can cause primary intracranial hemorrhage in children, leading to neurological issues like seizures. This rare complication highlights VZV as a potential risk factor for pediatric intracranial bleeding.

Area of Science:

  • Pediatric Neurology
  • Infectious Diseases
  • Vascular Neurology

Background:

  • Varicella zoster virus (VZV) is a common childhood infection.
  • Arterial ischemic stroke is a known complication of VZV infection in children.
  • Primary intracranial hemorrhage (ICH) is a rare but serious VZV-associated event.

Observation:

  • A 7-month-old male developed primary ICH two months post-VZV infection.
  • Initial symptoms included seizures and right hemiparesis.
  • Residual finding at 22 months was left hand preference.

Findings:

  • The patient experienced an anterior interhemispheric hemorrhage.
  • A focal arteritis of the left anterior cerebral artery was identified.
  • The vascular abnormality was transient, showing features of arteritis or vasospasm.

Implications:

  • VZV may directly invade cerebral vessels, causing necrotizing angiitis and ICH.
  • VZV infection should be considered a potential risk factor for ICH in children.
  • This case expands the understanding of VZV-related cerebrovascular complications.

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