We describe a case of a 6-month-old female patient with a segmental, superficial, infantile hemangioma (IH) on the forehead being treated with propranolol 2 mg/kg/d for 5 months, who developed a symplastic hemangioma (SH) over the preexisting lesion, highlighting the need to consider SH in the differential diagnosis of vascular lesions arising over preexisting vascular anomalies in children.
Keywords: infantile hemangioma; propranolol; segmental hemangioma; symplastic hemangioma.
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