Retinal Arterial Occlusive Disease in a Young Patient with Cat Scratch Disease

PURPOSE To report an unusual case of a branch retinal arterial occlusion and bilateral multifocal retinitis in a young woman with cat scratch disease. METHODS A 23-year-old woman was referred to our clinic complaining of a sudden scotoma in the upper part of the visual field of her left eye. Fundoscopy revealed occlusion of an inferior temporal branch of the retinal artery in the left eye and bilateral multifocal retinitis, which was confirmed by fluorescein angiography. Subsequent indocyanine angiography did not reveal choroidal involvement. Laboratory analysis showed rising IgG titers for Bartonella henselae. RESULTS Cat scratch disease was diagnosed, and a 4-week course of doxycycline was initiated. The patient responded well to the antibiotics. Both retinitis and arterial occlusion were resolved, the visual field was regained and the patient reported elimination of her symptoms. CONCLUSIONS Cat scratch disease should be considered in the differential diagnosis in young patients with retinal occlusive disease.