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要約 目的:発症から48年後に診断が確定した壊死性ヘルペス性網膜症の報告。症例:58歳男性が左眼の霧視で受診した。39年前に左眼,その2年後に右眼にぶどう膜炎が発症し,右眼は網膜剝離で失明した。20年前に左眼が眼トキソプラズマ症と診断され,加療中であった。所見と経過:矯正視力は右光覚なし,左0.7であった。硝子体混濁と網脈絡膜炎が左眼にあり,眼トキソプラズマの再燃と診断した。3年後に網膜剝離が発症し,手術で復位した。その5年後に網膜剝離が再発し,硝子体手術を行った。硝子体から単純ヘルペスウイルス(HSV-2)遺伝子が検出され,壊死性ヘルペス性網膜症の診断が確定した。パラシクロビルの内服で炎症は寛解した。結論:両眼性ぶどう膜炎ではウイルス性網膜症の可能性があり,眼内液の生検が診断に有用である。
Abstract. Purpose:To report a case of necrotizing herpetic retinopathy diagnosed 48 years after onset. Case:A 58-year-old male presented with blurring of vision in his left eye. His left eye had developed uveitis 39 years before. The right eye developed uveitis 2 years later and became blind after retinal detachment. The left eye had been diagnosed with ocular toxoplasmosis 20 years before. Findings and Course:Visual acuity was no light perception right and 0.7 left. The left eye showed vitreous opacity and retinochoroiditis and was treated as ocular toxoplasmosis. Retinal detachment developed 3 years later and cured after surgery. It recurred another 5 years later and received vitreous surgery. Herpes simplex virus(HSV-2)was detected in the vitreous,leading to the diagnosis of necrotizing herpetic retinitis. Systemic paracyclovir was followed by remission. Conclusion:This cased illustrates the usefulness of biopsy of intraocular fluid to detect HSV in bilateral uveitis of unknown etiology.
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