Department of Dermatology, Victor Dupouy General Hospital, 69 rue du Lieutenant Colonel Prudhon, 95107 Argenteuil, France.
Calcinosis cutis is common in several connective tissue diseases such as dermatomyositis, scleroderma or lupus erythematous. In dermatomyositis, it is more likely to concern children than adults but it is not exceptional in adults. Several treatments have been used empirically with inconsistent success. We report a case of adult cutis calcinosis associated with dermatomyositis which responded dramatically to treatment with diltiazem.