Is dermatomyositis an autoimmune disease?

Dermatomyositis. Dermatomyositis is an autoimmune disease that affects skin and muscles. Anti body associated with this is anti-jo a/b . Dermatomyositis follows a viral illness or as autoimmune entity . In few patients it is present with cancer. It also affects lungs, heart and esophagus . It also overlaps at times with lupus. Scleroderma and sjogren's . Diagnosis by muscle /skin biopsy.
Yes. Several autoantibodies are associated with dermatomyositis http://www.Ncbi.Nlm.Nih.Gov/pubmed/22644102 http://www.Ncbi.Nlm.Nih.Gov/pubmed/22546500 http://www.Ncbi.Nlm.Nih.Gov/pubmed/22513056.