Thrombotic risk of muscular dystrophy: protein C deficiency, factor V Leiden, and myotonic dystrophy.

While patients with hereditary muscular disorder are more sedentary and believed to be at risk of thrombosis, there is little literature on thrombosis associated with hereditary muscular disorder. We report a rare case of double heterozygous type I protein C deficiency and factor V Leiden in a patient with classic myotonic dystrophy.