Severe Adult-onset Calcinosis in a Patient with a History of Juvenile Dermatomyositis

Calcific deposits develop in 20%–40%1 of children with juvenile dermatomyositis (JDM); however, calcinosis is a rare feature in adults with dermatomyositis2,3. In adults, calcification often presents as firm subcutaneous nodules that are frequently most prominent around sites of repeated microtrauma, such as elbows, knees, buttocks, and …