Aplasia cutis congenita: Two cases of non-scalp lesions.

Aplasia cutis congenita (ACC) is a rare condition characterized by a localized absence of skin and in some cases, the subcutaneous tissues. The majority of cases occur in the scalp; however, the lesion may occur anywhere in the trunk and extremities. ACC is most often an isolated defect, but it can be associated with other anomalies. Most reported cases are sporadic with a few reports of familial occurrence. Neither the pathogenesis nor the aetiology is clarified. Healing is spontaneous in most cases, and apart from keeping the lesion clean, no specific treatment is required. In this report, two cases of non-scalp ACC occurring in the lower limbs are presented and a brief review of the literature is conducted.