Ciliary body schwannoma

Purpose: Intraocular schwannomas are very rare, benign, peripheral nerve ne oplasms. The authors report a case of ciliary body schwannoma. Method: A 39-year-old Korean woman presented with slowly decreasing visual acuity and proptosis of the right eye for 4 years. At the time of her visit , the eyeball protruded and deviated laterally. She could not sense light w ith her right eye. We enucleated the eyeball. The enucleated eyeball with t umor was examined histopathologically, immunohistochemically, and under ele ctron microscope. Results: Microscopic examination revealed spindle cells and characteristic Antoni type A and B areas with Verocay bodies. Immunohistochemical study sh owed tumor cell expressions of S-100 and vimentin, but other immunohistoche mical studies were negative. Electron microscopic examination demonstrated Luse body. Conclusions: We diagnosed the tumor as a schwannoma arising from the ciliar y body on the basis of the above mentioned results. Schwannomas are very ra re intraocular neoplasms, but they are benign so we should differentiate fr om other intraocular neoplasms.