We describe a conjunctival tumor that occurred in the limbic region of the left eye in a 37-year-old man. The mass was located beneath the conjunctival epithelium. It consisted of a well-demarcated proliferation of fusiform cells arranged in bundles in a fibrous stroma. Tumor cells strongly expressed S-100 protein. On ultrastructural analysis, the tumor was composed of Schwann cells surrounded by a continuous basal lamina. These data led to the rare diagnosis of conjunctival schwannoma.
Le Marc'hadour F, Romanet JP, Fdili A, Péoc'h M, Pinel N. Schwannoma of the Bulbar Conjunctiva. Arch Ophthalmol. 1996;114(10):1258-1260. doi:10.1001/archopht.1996.01100140458019