• A female newborn had a cystic, whitish gray mass at the inferotemporal limbus of the left eye. At age 3 weeks, the newborn underwent excision of the tumor, corneal patch grafting, and superior sector optical iridectomy. Histopathologic and electron microscopic examination of the excised tissue revealed a choristoma consisting of cysts lined with respiratory epithelium. To our knowledge, respiratory epithelium in a limbal choristoma has not been previously reported.
Young TL, Büch ER, Kaufman LM, Sugar J, Tso MOM. Respiratory Epithelium in a Cystic Choristoma of the Limbus. Arch Ophthalmol. 1990;108(12):1736-1739. doi:10.1001/archopht.1990.01070140090036