Calcinosis cutis in autoimmune connective tissue diseases

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Calcinosis cutis is a chronic condition involving insoluble calcified deposits of the skin and subcutaneous tissue. It is commonly associated with autoimmune connective tissue diseases and can be a source of pain and functional disability. The likelihood of developing calcinosis varies among the autoimmune connective tissue diseases, with systemic sclerosis and dermatomyositis being the most commonly associated. Identification of therapy for this challenging disorder has been hampered by a paucity of large controlled trials. Although there is no uniformly effective treatment for calcinosis cutis, several surgical and medical therapies have demonstrated varying degrees of benefit in the treatment of calcinosis, including surgical excision, laser therapy, extracorporeal shock wave lithotripsy, diltiazem, minocycline, colchicine, and topical sodium thiosulfate, along with others. Recommendations for the diagnosis and therapy of calcinosis cutis in patients with autoimmune connective tissue diseases are discussed.

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