Polymyositis and Dermatomyositis (PM/DM) are autoimmune diseases which primarily affect the muscles and/or the skin, although other organs may also be involved (lung, heart…). The illnesses severely reduce the quality of life and may, if not diagnosed and treated rapidly, progress over time to a life-threatening state. The diagnosis of PM/DM however is difficult since overlap syndromes with features of other diseases, scleroderma namely, are frequent. In this context, D-tek has developped a new Polymyositis/Scleroderma7 Bluedot kit that allows to screen serologically from PM/DM to scleroderma, through overlap syndrome and myositis of unclear origin, in one easy test run. It offers easy handling and cost effectiveness for the reliable detection of the seven most relevant antibodies Jo-1, PL-7, PL-12, Mi-2, Ku, PM-Scl and Scl-70 in a single test.