ADEM

Medical abbreviation · Neurology

ADEM
Stands forAcute disseminated encephalomyelitis
CategoriesMedical

ADEM stands for Acute disseminated encephalomyelitis, a neurology abbreviation.

Inflammatory demyelinating illness, usually in children, that often follows a viral infection or, rarely, vaccination. It causes rapid onset of confusion or drowsiness with multiple neurological deficits and widespread white matter lesions on MRI.

Example: Six-year-old with encephalopathy and ataxia two weeks after a viral illness; MRI shows large bilateral lesions: ADEM.

Usage notes

ADEM is typically monophasic, meaning it occurs once, unlike multiple sclerosis. High-dose intravenous steroids are first-line treatment, with IVIG or plasma exchange for poor responses. Many children with relapsing ADEM-like illness test positive for MOG antibodies. Most recover well, though some have lasting deficits.

More neurology abbreviations

  • ABCD2 – Age, Blood pressure, Clinical features, Duration, Diabetes
  • ACA – Anterior cerebral artery
  • AChR – Acetylcholine receptor
  • ACom – Anterior communicating artery
  • AD – Alzheimer's disease
  • AED – Antiepileptic drug
  • AIS – Acute ischemic stroke
  • ALS – Amyotrophic lateral sclerosis
  • AMS – Altered mental status
  • ASIA – American Spinal Injury Association
  • ASM – Antiseizure medication
  • ASPECTS – Alberta Stroke Program Early CT Score

See all 131 neurology abbreviations →

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.