1. Optical Coherence Tomography Angiography of Retinal-Choroidal Anastomosis in Toxoplasmosis Chorioretinitis

    Optical Coherence Tomography Angiography of Retinal-Choroidal Anastomosis in Toxoplasmosis Chorioretinitis

    A young adult was examined for follow-up of toxoplasmosis chorioretinitis that was diagnosed and treated during early childhood. Two subsequent flare-ups were treated with atovaquone, combined trimethoprim and sulfamethoxazole, and oral prednisone. Visual acuity was 20/20 OD. Ophthalmoscopic examination results demonstrated an inactive temporal chorioretinal scar with an apparent retinal-choroidal anastomosis ( Figure ). Optical coherence tomography angiography was performed through the anastomosis. Enface images ( Figure ) of the retinal and choroidal circulations confirmed that there was an anastomotic flow between the retinal venous and choroidal circulations ( Figure ). We postulate that this anastomosis resulted from the structural damage that was caused by ...

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