Multiple lesions of molluscum contagiosum with metaplastic ossification.

A 30-year-old woman, suffering from systemic lupus erythematosus and treated with azathioprine and methyl-prednisolone, developed seven molluscum contagiosum lesions of the upper part of her left calf. Histological examination revealed metaplastic ossification in the upper dermis, in close relation to each molluscum contagiosum lesion. Such an association has not been reported before; its occurrence in this case is discussed.