Does calcinosis appear differently in patients with dermatomyositis compared to systemic sclerosis?  

Classically, calcinosis in dermatomyositis and scleroderma are different with dermatomyositis having more typical sheet-like calcinosis in the muscles whereas in scleroderma it is more typical on the fingers, extensor surfaces of the forearm, olecranon, knee, and shins. However, many sclerodermas al...