An Approach to a Case of Retinitis
Inflammation of retinal tissue causes characteristic fundus findings depending on whether it is full-thickness or partial-thickness or outer or inner retinal involvement. Figure 1A: A case of epidemic retinitis: Bright yellow superficial fluffy lesion superiorly to the disc obscuring retinal vessels passing through it is typical of inner or full-thickness retinitis. 1B: A case of progressive outer retinal necrosis: Yellowish lesions with clear retinal overlying vasculature suggests outer retinitis. Full-thickness or inner retinal involvement produces bright yellow fluffy lesions with indistinct borders. (Figure 1A) Retinal vasculature passing through these lesions appears obscured. At times, such lesions can mimic cotton-wool spots and may produce moderate to severe vitritis. Outer retinal inflammatory lesions appear dull orange or yellow with indistinct borders, retinal vessels may remain clear over the lesions (Figure 1B) and vitritis could be mild-moderate. Differentiating retinitis
Dr. Ankush Kawali · Dr. Sanjay Srinivasan · +1 other