Calcinosis cutis is a rare disease characterized by the deposition of insoluble calcium phosphate crystals in the epidermis. Etiologically it is divided into 4 types: dystrophic, metastatic, iatrogenic and idiopathic. The most common type is the dystrophic type and the rarest idiopathic type. The pathophysiology of calcinosis cutis is not clearly known. Its definitive diagnosis is made histopathologically by showing calcium accumulation in the skin and clinically excluding other types. A pediatric patient was admitted to our clinic with a left auricular mass, and histopathological findings were diagnosed as idiopathic calcinosis cutis. Our case is presented in the light of literature because it is seen in auricula, an atypical localization of idiopathic calcinosis cutis, which is a rare type.