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Metachromatic leukodystrophy, adult form

Disease definition

A subtype of Metachromatic leukodystrophy characterized by progressive psychomotor regression with an insidious onset after the age of 16 years, most often beginning with intellectual and behavioral changes, such as memory deficits or emotional instability. The clinical picture is dominated by gradual cognitive, later also motor, decline, taking a protracted course with periods of waxing and waning. Decerebration and death occur within decades after disease onset.


Classification level: Subtype of disorder
  • Synonym(s):
    • Arylsulfatase A deficiency, adult form
    • MLD, adult form
  • Prevalence: Unknown
  • Inheritance: -
  • Age of onset: Adult
  • ICD-10: E75.2
  • ICD-11: 5C56.02
  • OMIM: 250100
  • UMLS: C0751279
  • MeSH: -
  • GARD: -
  • MedDRA: -

Detailed information

General public


Disease review articles

Clinical Outcome Assessment (COA)

  • Patient-Centered Outcome Measures (PCOMs)
  • English (2023) - PROQOLIDTM
ERN produced/endorsed by ERN(s)   FSMR produced/endorsed by FSMR(s)
The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.