Extensive calcinosis cutis in association with systemic lupus erythematosus.

Sir, Calcium deposits in the skin sometimes occur is association with certain connective tissue diseases, particularlyscleroderma and dermatomyositis (1). This ® nding is extremely rare in systemic lupus erythematosus (SLE) (2). In most cases of calcinosis cutis in SLE, the deposition of calcium is usually seen under the cutaneous lupus lesions, and the amounts are relatively small. We report here a 49-year-oldwoman featuring SLE with extensive subcutaneous and muscular calci® cations. Over time, the calci® cation became more diŒuse and extended into the subcutaneous and muscular layer of her pelvis and extremities, forming large plate-like calci® cations. Only 16 such cases of extensive calcinosis cutis in SLE have been reported in the literature (3± 12).