Myotonic dystrophy

Curschmann-Batten-Steinert syndrome; Dystrophia myotonica; Myotonia atrophica; Myotonia dystrophica; Steinert disease; Steinert myotonic dystrophy syndrome

The introduction to this article is too long. Please help Wikipedia by improving the introduction according to the guidelines at Wikipedia:Guide to layout, moving some material from the introduction into the body of the article. Myotonic dystrophy (DM) is the most common muscular dystrophy in adults, and is the second most common muscular dystrophy after Duchenne muscular dystrophy. It is an autosomal dominant genetic disorder Onset is usually in the second or third decade and the life span ...