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Updated: May 5, 2026

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[Subacute sclerosing panencephalitis]

Anna Bryan Stensbøl1, Kristina Træholt Franck2, Zohra Fatima Umar3

  • 1Afdeling for Børn og Unge, Københavns Universitetshospital - Rigshospitalet.

Ugeskrift for Laeger
|January 5, 2026
PubMed

Insights

Subacute sclerosing panencephalitis (SSPE) is a rare, fatal measles complication. This case highlights the importance of measles-mumps-rubella (MMR) vaccination and clinical awareness, especially in vulnerable populations.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Pediatrics

Background:

  • Subacute sclerosing panencephalitis (SSPE) is a rare, fatal neurological complication of measles infection.
  • It results from persistent measles virus in the central nervous system, typically years after initial infection.
  • SSPE poses a significant diagnostic challenge, particularly in diverse clinical settings.

Purpose of the Study:

  • To report a case of SSPE in an 11-year-old boy from a crisis-affected country.
  • To emphasize the critical role of measles-mumps-rubella (MMR) vaccination in preventing SSPE.
  • To underscore the necessity of clinical vigilance for rare infectious diseases.

Main Methods:

  • Clinical case presentation of an 11-year-old Syrian boy with progressive encephalopathy.
  • Diagnostic workup included magnetic resonance imaging (MRI) of the brain.
  • Post-mortem confirmation of SSPE.

Main Results:

  • The patient presented with severe neurological decline and a vegetative state.
  • MRI revealed characteristic diffuse white matter, thalamic, and pontine abnormalities.
  • SSPE diagnosis was confirmed post-mortem.

Conclusions:

  • This case underscores the continued risk of SSPE despite prior measles and MMR vaccination.
  • High MMR vaccine coverage is essential for preventing SSPE outbreaks.
  • Clinical awareness of SSPE is crucial for early diagnosis and management, especially in populations affected by crises.

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