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Related Experiment Videos

[Phenotype variability in Steinert's myotonic dystrophy].

J P Bouchard1

  • 1Département des sciences neurologiques, Hôpital de l'Enfant-Jésus, Québec, Canada.

The Canadian Journal of Neurological Sciences. Le Journal Canadien Des Sciences Neurologiques
|February 1, 1989
PubMed
Summary
This summary is machine-generated.

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Myotonic dystrophy, a systemic genetic disorder, presents with myopathy and myotonia. This review highlights its diverse clinical signs, including a newly identified ear abnormality, aiding practitioners in diagnosis and patient care.

Area of Science:

  • Neurology
  • Genetics
  • Dermatology

Context:

  • Myotonic dystrophy (DM), also known as Steinert disease, is a dominantly inherited multisystemic disorder.
  • Characterized by myopathy and myotonia, DM can affect the central nervous system, eyes, bones, and endocrine system.

Purpose:

  • To review the primary clinical manifestations of classical myotonic dystrophy.
  • To emphasize the significant clinical variability within the disease spectrum.
  • To introduce a novel dysmorphic sign: large, prominent, cupped auricles (prominauris).

Summary:

  • The review details the characteristic clinical picture of myotonic dystrophy, emphasizing myopathy and myotonia as key features.
  • It discusses the systemic involvement of the disease, affecting multiple organs.

Related Experiment Videos

  • A new dysmorphic sign, prominent cupped auricles, is described and illustrated, differentiating it from fragile-X syndrome in congenital cases.

    • Impact:

    • Facilitates easier clinical diagnosis of myotonic dystrophy through recognition of characteristic signs.
    • Aids in differentiating myotonic dystrophy from other genetic syndromes with overlapping features, such as fragile-X syndrome.
    • Empowers healthcare practitioners with updated clinical knowledge for improved patient recognition and management.