A congenital form of myotonia with dystrophic changes in a quarterhorse.
D000818:Animals; D006734:Horse Diseases / Q000097:blood / Q000151:congenital* / Q000473:pathology; D006736:Horses; D008297:Male; D009137:Muscular Dystrophy, Animal / Q000097:blood / Q000473:pathology*; D009224:Myotonia Congenita / Q000097:blood / Q000473:pathology / Q000662:veterinary*