Abstract
Ocular choristomas are rare lesions that have been reported at the conjunctiva, sclera, orbit, or intraocularly with significant potential for visual disturbance. The complex type of choristomas shows a mixture of different cartilaginous, glandular, and muscular tissue in addition to fat. We present a patient with an associated eyelid coloboma and complex choristoma. A 12-day-old baby boy was referred to our hospital with an upper medial eyelid coloboma affecting almost two-thirds of the eyelid length with an additional sub-brow mass since birth. The baby also had secondary findings to the eyelid coloboma defect: temporal conjunctival symblepharon, vascularized cornea, and inferior pannus. The patient underwent an upper eyelid reconstruction with excisional biopsy of the sub-brow mass, which was diagnosed as a complex choristoma. This is the first case of an eyelid coloboma-associated with complex choristoma without any other systemic associations.