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MR imaging of herpes simplex type 1 encephalitis in infants and young children: a separate pattern of findings

J R Leonard1, C J Moran, D T Cross

  • 1Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA.

AJR. American Journal of Roentgenology
|June 14, 2000
PubMed
Abstract

Insights

Initial magnetic resonance (MR) imaging findings for herpes simplex encephalitis in infants and young children differ from other age groups. Recognizing this unique MR pattern aids in timely herpes encephalitis diagnosis.

Area of Science:

  • Neurology
  • Pediatric Radiology
  • Infectious Diseases

Background:

  • Herpes simplex encephalitis (HSE) is a severe neurological infection.
  • Magnetic resonance (MR) imaging is crucial for diagnosing HSE.
  • HSE presentation on MR imaging can vary by age.

Purpose of the Study:

  • To characterize the initial MR imaging findings of HSE in infants and young children.
  • To differentiate HSE imaging patterns in this specific age group.

Main Methods:

  • Retrospective review of MR imaging studies in infants and young children diagnosed with HSE.
  • Analysis of lesion location, signal intensity, and enhancement patterns.

Main Results:

  • MR imaging findings in infants and young children with HSE show distinct patterns.
  • These patterns differ from those observed in neonates, older children, and adults.

Conclusions:

  • The MR imaging appearance of HSE in infants and young children is unique.
  • Awareness of these specific MR findings, alongside clinical suspicion, improves diagnostic accuracy for HSE.

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