The enzymes that indicate Dermatomyositis also indicate liver disease, which is much more common. Most doctors will perform a liver biopsy that shows everything is normal. Then, they will look at the enzymes in the muscle and see that there is a problem. In this video series, Dr. Eleni Tiniakou, a physician at the Johns Hopkins Myositis Center, discusses the process of diagnosing Dermatomyositis. | Johns Hopkins Rheumatology