Bullous Kaposiform Hemangioendothelioma Masquerading as Aplasia Cutis Congenita

We present the case of a male infant with violaceous bullae on the scalp that were initially thought to be bullous aplasia cutis but at 3 months of age were diagnosed as a kaposiform hemangioendothelioma. This diagnosis should be considered when evaluating newborns with bullous plaques on the scalp that do not heal in the first 2–3 weeks of life. Kaposiform hemangioendothelioma ( KHE ) is a rare vascular tumor that typically presents as a violaceous to purpuric plaque at birth or early infancy. It may be associated with Kasabach‐Merritt phenomenon ( KMP ), a potentially life‐threatening consumptive coagulopathy.