[Infantile hemangioma: update and treatment].

Infantile hemangioma (IH) is not strictly speaking a tumor, but the result of anarchic postnatal vasculogenesis. Hypoxia seems to play an important role as a predisposing factor. IHs can present three clinical morphologies: superficial, deep, or mixed. Localized IHs are oval or round, circumscribed lesions, whereas segmental IHs extend across a large anatomic area with a geographic shape. Localized IHs are often benign, except when they are located near a noble structure such as the airways or the orbital area. Segmental IH may be associated with birth defects (PHACES syndrome and SACRAL syndrome). Clinical follow-up of infants with IH should be very careful in the first weeks of life since 80% of all IHs have reached their final size at 5 months of age. The main indications for treatment of IHs are: life-threatening conditions (heart failure, respiratory distress), functional risks (amblyopia, swallowing disorders, etc.), aesthetic risks (especially IH of the face localized on the nose, lips, etc.), and painful ulcerated IH. Beta-blockers, namely propranolol, have quickly become the first-line therapy of complicated IH. The treatment should be given as soon as possible to avoid sequelae.