Infantile Hemangioma Localized in the Levator Aponeurosis-Müller's Muscle Complex.

A two-month-old male infant presented with a soft palpable mass on his left upper eyelid. Initial management consisted of watchful observation followed by administration of β-blocker eyedrops on the eight-month check-up when a purple subconjunctival mass was observed during eyelid eversion, suggestive of an infantile hemangioma. At the three-year follow-up, since it was observed that the treatment did not reduce the size of the mass, an excisional biopsy was performed at the request of the mother. During surgery, the mass was identified in the levator aponeurosis-Müller's muscle complex, between the tarsus and the junction of the levator aponeurosis and orbital septum. Pathological examination and immunohistochemical staining confirmed the diagnosis of infantile hemangioma. Symmetric eyelid position was achieved with no recurrence at the three-month follow-up.