A Rare Case of Abdominal Skin Malformation

Case description: We describe the clinical case of a female newborn, result of a monitored, full-term pregnancy, who presented at birth with an atrophic lesion on the abdominal wall, measuring around 5cm and with visualization of the underlying vasculature. There were no other alterations on objective examination. Aplasia cutis congenita (ACC) was hypothesized and corroborated by dermatology. Abdominal, transfontanellar ultrasound and echocardiogram were requested with no associated anomalies. No family history of similar skin lesions. The approach was conservative with the application of an emollient and there was a favorable evolution, with gradual regression of the lesion. Conclusion: ACC is a rare entity characterized by focal or generalized absence of skin. Since mild cases may not be reported, its incidence may be underestimated. The appropriate approach to this entity depends on its characteristics and severity, and a careful evaluation should be carried out to identify and guide associated malformations at an early stage. Because of the possible implications in terms of counseling, a thorough family history is important. Small, isolated lesions usually resolve spontaneously, and complications are rare.