Purpose: To describe multimodal imaging of syphilitic multifocal retinitis.
Methods: Observational case series.
Results: Two patients developed multifocal retinitis after treatment of unrecognized syphilitic uveitis with systemic corticosteroids in the absence of appropriate antibiotic therapy. Multimodal imaging localized the foci of retinitis within the retina in contrast to superficial retinal precipitates that accumulate on the surface of the retina in eyes with untreated syphilitic uveitis. Although the retinitis resolved after treatment with systemic penicillin in both cases, vision remained poor in the patient with multifocal retinitis involving the macula.
Conclusion: Treatment of unrecognized syphilitic uveitis with corticosteroids in the absence of antitreponemal treatment can lead to the development of multifocal retinitis. Multimodal imaging, and optical coherence tomography in particular, can be used to distinguish multifocal retinitis from superficial retinal precipitates or accumulations.
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