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Case Reports in Ophthalmological Medicine
Volume 2014, Article ID 292619, 3 pages
Case Report

Epibulbar Osseous Choristoma

1Ophthalmology Department, Diskapi Yildirim Beyazit Education and Research Hospital, Irfan Bastug Street, Diskapi, 06330 Ankara, Turkey
2Radiology Department, Unye Cakirtepe Hospital, Atatürk Mah. Tepeyolu Street No. 43, 52300 Ordu, Turkey

Received 21 September 2014; Accepted 24 November 2014; Published 15 December 2014

Academic Editor: Alexander A. Bialasiewicz

Copyright © 2014 Tolga Bicer and Hasan Soylemez. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The topic of this case report is a rare subconjuctival osseous choristoma that corresponded to the left lateral sunconjunctiva and canthus. A 20-year-old man was asymptomatic when he arrived for the examination. His full ophthalmic examination was normal. Orbital computerized tomography was concordant with osseous lesion. Osseous choristomas are the rarest forms of ocular choristomas, they are usually being defined as sporadic, and they are found at the superior temporal region of the episclera. In our case, choristoma was in the lateral canthus of the left eye. We had administered surgical excision by reason of the patient’s cosmetic requirement. We had noted that the lesion was adherent to conjunctiva but not to the sclera and the muscles. After surgical treatment, we saw mature heterotrophic osseous tissue in subconjunctival area and Haversian canals in compact bone tissue.