Sanfilippo type D presenting with acquired language disorder but without features of mucopolysaccharidosis

J Child Neurol. 1994 Oct;9(4):408-11. doi: 10.1177/088307389400900415.

Abstract

A 7-year-old girl presented with a language disorder reminiscent of verbal auditory agnosia. Later, she proved to have defective N-acetylglucosamine-6-sulfate sulfatase, the enzyme deficient in Sanfilippo D syndrome. She did not show clinical features of mucopolysaccharidosis. The language disorder had a fluctuating course, which eventually evolved into a progressive dementing encephalopathy.

Publication types

  • Case Reports

MeSH terms

  • Agnosia / diagnosis*
  • Agnosia / genetics
  • Brain / pathology
  • Brain Diseases, Metabolic / diagnosis*
  • Brain Diseases, Metabolic / genetics
  • Child
  • Child, Preschool
  • Dementia / diagnosis
  • Dementia / genetics
  • Female
  • Follow-Up Studies
  • Humans
  • Language Development Disorders / diagnosis*
  • Language Development Disorders / genetics
  • Magnetic Resonance Imaging
  • Mucopolysaccharidosis III / diagnosis*
  • Mucopolysaccharidosis III / genetics
  • Sulfatases / deficiency
  • Sulfatases / genetics

Substances

  • Sulfatases
  • N-acetylglucosamine-6-sulfatase