Hemangiomas are frequent tumors that manifest in variable forms. Rapidly Involuting Congenital Hemangiomas (RICH) are a rare subtype, only recently described, which, in contrast to the typical infantile hemangioma, undergo accelerated involution, sometimes within days. Their different initial appearance and posterior evolution may cause confusion with other tumors of infancy or even with congenital malformations. We present a case of RICH in the upper lip that after rapid involution produced a morphologic sequel that resembled a microform cleft lip. The authors review the specific characteristics of this rare tumor and describe the technical detail of surgical correction in this patient.