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Toxoplasmosis: Retinal Infiltrate
When such an infiltrate heals, it will leave a scar in the retina. If full-thickness retina and choroid have been destroyed, you will be looking straight through to the white sclera. Black pigment usually rings the scar. Other causes of retinal infiltrates are systemic bacterial sepsis, candidiasis, herpes simplex or zoster, sarcoid, lues, and filariasis.
ToxoplasmosisIn immunocompetent hosts, this condition usually represents satellite reactivation of a congenital lesion, evident as an adjacent healed chorioretinal scar.In immunocompromised hosts, toxoplasmosis is usually acquired, and no old scars are seen. The patient probably also has toxoplasmic lesions elsewhere in the brain. Treatment consists of a regimen made up of various combinations of systemic pyrimethamine (with folinic acid rescue), sulfadiazine, prednisone, and clindamycin.
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