Skin manifestations of systemic autoimmune connective tissue disease: diagnostics and therapeutics.

Skin disease can significantly affect the quality of life of patients suffering from rheumatic diseases. In addition, important relationships exist between the cutaneous and systemic manifestations of rheumatic disease. It is thus important for practicing rheumatologists to have a solid working understanding of the subject of rheumatic skin disease. Unfortunately, it is not possible within the scope of this chapter to provide a comprehensive overview of the recognition and management of all of the cutaneous manifestations of lupus erythematosus (LE), much less those of dermatomyositis (DM)/polymyositis and scleroderma/systemic sclerosis (SSc) as well. As can be seen in in the text, the cutaneous manifestations of polygenic autoimmune disorders such as LE can be as heterogeneous clinically as are its systemic manifestations. This discussion will therefore focus on recent key developments concerning the diagnosis and management of the more common skin changes that the practicing rheumatologist is likely to encountered in the three major rheumatic diseases: LE, DM and SSc.