Unusual optic disc placement of toxoplasmosis in a diabetic patient

A 44-year-old woman presented to our clinic with reduced vision in the right eye for two weeks. Visual acuity was 4/10 in the right eye. A swelling optic disc, vascular attenuation in the optic nerve head, a few splinter hemorrhages around the optic disc, and moderate vitritis were detected in the right eye. The left eye was normal. She had a diabetes mellitus (DM) history for five years. Serum IgM and IgG found a high titer for toxoplasmosis. A papillitis was diagnosed that was caused by primary toxoplasmosis without any chorioretinal focus. The patient was treated with an appropriate systemic antibiotics for toxoplasmosis and per oral corticosteroid. Optic disc swelling resolved within four weeks. Visual acuity was 9/10 two months later. We aimed to emphasize that the unusual placement of toxoplasmosis should be kept in mind in the differential diagnosis of papillitis in diabetic patients.