Select the most common clinical sign or symptom for diagnosis PHACE syndrome
The child with a unilateral facial lesion and blindness suggests either Sturge-Webber or PHACE syndrome (posterior fossa malformations, hemangiomas, arterial anomalies, coarctation of the aorta or other cardiac defects, and eye abnormalities). These patients can have seizures, hemiparesis, intracranial calcifications, and mental retardation.