Juvenile dermatomyositis is a chronic inflammatory disorder of unknown etiology that affects primarily skin and muscle. Calcinosis is a common and debilitating complication of juvenile dermatomyositis, with an incidence of 30 % to 70 %, contributing morbidity and mortality of disease. The well-know risk faktors for calcinosis include delayed treatment and severe disease. Calcium deposits were first noticed at a median of 3.4 years after onset of juvenile dermatomyositis. In this case report we present a child with early development of calsinosis and accompanying multifocal abscess worsening the clinical situation. We want to emphasize with our case the importance to recall occult infections,when there is increment of the patient's complaints even the classical infectious findings are lacking.