Laboratory tests showed normal serum levels of parathyroid hormone, calcium, phosphate, creatine kinase and creatinine. There was no history of exposure to hypercalcemic treatments to support the iatrogenic form of the disease, and the location of the lesions was not suggestive of gouty tophi. ...considering the history of dermatomyositis, the diagnosis of the dystrophic form of the disease was made. Most cases occur in association with autoimmune connective tissue diseases, mainly systemic sclerosis and dermatomyositis.2 Although this condition is more frequent in juvenile dermatomyositis, it can also occur in adults.2 Its underlying mechanisms are not fully understood but these lesions, which are frequently painful and prone to infections, can improve spontaneously by means of transepidermal elimination of calcium.