Posterior scleritis resembling acute retinal necrosis syndrome.

Purpose: To report a challenging diagnosis of posterior scleritis in a patient with features of retinal necrosis.

Methods: Single observational case report.

Results: A 74-year-old man presented with atypical anterior scleritis in the left eye. Funduscopy showed subretinal inflammatory infiltration resembling acute retinal necrosis. The patient was treated with indomethacin, with resolution of the process.

Conclusion: Typical signs of posterior scleritis include serous retinal detachment and choroidal folds in the posterior pole. Nonetheless, an atypical presentation can also occur, with peripheral whitish or subretinal inflammatory infiltrate, serous retinal detachment, and hemorrhages, resembling an acute retinal necrosis syndrome.