The CTG repeat size in adult onset is generally in the range of 50 to 1,000.1. The mild form of DM1 is characterized by mild weakness, myotonia, and cataracts.
Author(s): Rajashree Srinivasan, MD, Saylee Dhamdhere, MD, and The most common adolescent and adult onset muscular dystrophies.
Myotonic muscular dystrophy is the most common form of adult-onset muscular dystrophy. Facial and neck muscles are usually the first to be.