Fundus Autofluorescence in Ocular Toxocariasis With a Posterior Granuloma

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    Appears in
    Ocular Toxocariasis With a Posterior Granuloma
    Condition/keywords
    toxocara granuloma, toxocariasis, toxocara scar, Toxocara, autofluorescence imaging
    Photographer
    David García-García, Optometrist, Clínica Oftalmológica Salauno, Mexico City
    Imaging device
    Fundus camera
    VISUCAM 524(Carl Zeiss Meditec AG, Jena, Germany)
    Description
    28 year-old patient with a history of right-eye leukocoria since the age of 15 and secondary sensory exotropia with ocular toxocariasis. Fundus autofluorescence showed an intensely hyperautofluorescent central lesion with relatively well-defined borders, corresponding to the fibroinflammatory granuloma. A heterogeneous autofluorescence pattern surrounded the lesion, with irregular marginal hypoautofluorescent areas, likely related to fibrosis, retinal pigment epithelium alterations, and a blocking effect. Mottled hyper- and hypoautofluorescent changes were also identified in the surrounding retina, consistent with chronic retinal pigment epithelium involvement. The optic disc showed homogeneous autofluorescence, and the tractional bands were associated with distortion of the posterior pole architecture.

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