sclerosing leukoencephalitis

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Definition

Noun: - A rare, chronic, and progressive neurological disease. It is a form of brain inflammation (encephalitis) caused by the measles virus, characterized by hardening (sclerosis) of white matter in the brain. It primarily affects children and young adults, typically following a primary measles infection at a very young age. The disease course is invariably fatal.

Usage
  • This is a highly specialized medical term used in neurology, virology, and pathology.
  • It is typically used in clinical diagnoses, medical literature, and case studies.
  • Example: "The patient's neurological decline was consistent with a diagnosis of sclerosing leukoencephalitis."
  • Example: "Sclerosing leukoencephalitis is a devastating late complication of measles infection."
Advanced Usage
  • The term is often used in its abbreviated form SLE. However, this abbreviation can be confused with Systemic Lupus Erythematosus, so context is critical.
  • It is frequently modified by the eponym Dawson's, as in Dawson's sclerosing leukoencephalitis, named after the physician who described it.
  • Example: "The histopathological findings confirmed Dawson's sclerosing leukoencephalitis."
Variants and Related Words
  • Subacute sclerosing panencephalitis (SSPE): This is the full and most clinically precise name for the condition. "Panencephalitis" indicates that all parts of the brain are inflamed.
  • Dawson's encephalitis: An eponymous variant of the term.
  • Leukoencephalitis: A broader term for inflammation of the brain's white matter, which can have various causes.
  • Panencephalitis: Inflammation of the entire brain.
Synonyms
  • Subacute sclerosing panencephalitis (SSPE) (This is the primary synonym and more complete term).
  • Dawson's disease.
  • Dawson's encephalitis.
Notes on Meaning

This term has one specific medical meaning. It is not used idiomatically or in non-medical contexts. The definition encompasses its cause (measles virus), pathology (sclerosing inflammation of white matter), patient demographic (children/young adults with early measles infection), and prognosis (progressive and fatal).

Noun
  1. a rare chronic progressive encephalitis caused by the measles virus and occurring primarily in children and young adults; death usually occurs within three years; characterized by primary measles infection before the age of two years

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