Conjunctival oncyocytomas are tumors arising from ductal and acinar cells of the accessory lacrimal glands. They are most commonly present as a reddish-brown lesion of the caruncle as seen in this photograph.
Ophthalmic Atlas Images by EyeRounds.org, The University of Iowa are licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.