Aplasia Cutis Congenita and Cutis Marmorata in a Neonate with Down Syndrome: A Rare Case Report

The rare congenital skin malformation known as Aplasia Cutis Congenita (ACC) can be identified by a localised lack of skin. Cutis marmorata, characterised by a transient, net-like, violaceous mottling of the skin, is often seen in preterm or low birth weight infants due to immature vascular responses to cold or stress. Down Syndrome (DS) is linked to uncommon dermatological conditions and has a higher incidence of some common dermatoses. This case presents a rare combination of cutis marmorata and ACC in a neonate diagnosed with DS. The management primarily focused on supportive care, including maintaining a thermoneutral environment, ensuring the baby remained warm, and close monitoring of vital signs. Stabilisation of respiration was achieved through appropriate oxygen support based on the degree of respiratory distress and oxygen requirement, along with prevention and management of potential infections. By doing so, the neonate can be prevented from going into shock, and the need for prolonged ventilation can be avoided. The presence of both cutis marmorata and ACC in this infant may not be coincidental. These skin findings could reflect overlapping effects of an underlying chromosomal abnormality. The favourable outcome reinforces the role of timely diagnosis, tailored supportive therapy, and multidisciplinary coordination, particularly when dealing with multiple congenital anomalies.