Neuroimaging study of myotonic dystrophy. I. Magnetic resonance imaging of the brain

Brain Dev. Jan-Feb 1995;17(1):24-7. doi: 10.1016/0387-7604(94)00096-g.

Abstract

Magnetic resonance imaging scans of the brain were obtained in 13 patients with myotonic dystrophy, seven with congenital myotonic dystrophy and six with adult-type myotonic dystrophy. All seven patients with congenital myotonic dystrophy had ventriculomegaly and a low IQ (DQ). Cerebral white matter lesions were observed in six cases, a small corpus callosum in four cases, a small brainstem in two cases, and a cerebellar white matter lesion in one case. Cerebral white matter lesions were observed in five of the six cases with adult-type myotonic dystrophy of which one had ventriculomegaly. The IQ (DQ) was significantly lower in patients with congenital myotonic dystrophy than in those with adult-type myotonic dystrophy. The incidence of a small corpus callosum or ventricular enlargement was higher in congenital myotonic dystrophy than in adult-type myotonic dystrophy. These findings may be related to the presence of neurologic impairment in congenital myotonic dystrophy.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Brain / pathology*
  • Cerebral Ventricles / pathology
  • Child
  • Child, Preschool
  • Corpus Callosum / pathology
  • Female
  • Humans
  • Infant
  • Magnetic Resonance Imaging
  • Male
  • Myotonic Dystrophy / congenital
  • Myotonic Dystrophy / diagnosis*
  • Myotonic Dystrophy / pathology