Clinical features of rapid involuting congenital hemangioma: A prospective study

To the Editor: Congenital hemangiomas are benign vascular tumors that differ from common infantile hemangiomas biologically and behaviorally.1 Several retrospective studies and case reports have reported the involuting pattern of rapidly involuting congenital hemangiomas (RICHs).2-5 However, no prospective studies reporting on the clinical features of RICH have been published. Although most RICHs are uncomplicated and can resolve spontaneously without causing morbidities, a significant minority of RICHs are associated with complications requiring timely referral to a specialist.