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Diseases

Genetic and Rare Diseases Information Center (GARD)

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Myotonic dystrophy type 2


Other Names for this Disease

  • DM2
  • Dystrophia myotonica type 2
  • Myotonic myopathy, proximal
  • PROMM
  • Proximal myotonic myopathy
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Inheritance

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How is myotonic dystrophy type 2 inherited?

Myotonic dystrophy type 2 is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is enough to cause symptoms of the condition. In most cases, an affected person has one affected parent.

As myotonic dystrophy is passed from one generation to the next, it generally begins earlier in life and signs and symptoms become more severe. This phenomenon is called anticipation. The cause of the anticipation in families with myotonic dystrophy type 2 is unknown.[1][2]
Last updated: 2/10/2014

References
  1. Learning About Myotonic Dystrophy. National Human Genome Research Institute (NHGRI). March 23, 2011; http://www.genome.gov/25521207. Accessed 4/8/2012.
  2. Myotonic dystrophy. Genetics Home Reference (GHR). November 2010; http://ghr.nlm.nih.gov/condition=myotonicdystrophy. Accessed 5/11/2011.


Other Names for this Disease
  • DM2
  • Dystrophia myotonica type 2
  • Myotonic myopathy, proximal
  • PROMM
  • Proximal myotonic myopathy
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.