Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts; and.
Department of Ophthalmology and Vision Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
Retin Cases Brief Rep. 2023 Sep 1;17(5):533-537. doi: 10.1097/ICB.0000000000001239. Epub 2022 Feb 1.
We describe the unusual clinical presentation of a 33-year-old woman subsequently identified as a carrier of RP2-associated X-linked retinitis pigmentosa.
Case report.
A 33-year-old woman without a known family history of retinal disease presented with unilateral reduced visual acuity and central scotoma in the left eye. Examination showed underlying macular atrophy in the left eye and a bilateral tapetal-like reflex. Full-field electroretinogram was abnormal in the left eye but normal in the right eye. Notable findings on wide-field imaging included bilateral peripheral vascular leakage on fluorescein angiography and a bilaterally symmetric radial pattern of hyperfluorescence on fundus autofluorescence. Genetic testing demonstrated a pathogenic variant in the gene RP2 confirming that she was a carrier of X-linked retinitis pigmentosa.
We describe clinical features of the carrier state of RP2-XLRP and expand potential findings to include peripheral vascular leakage. This case highlights the importance of awareness of the carrier state, particularly if a family history cannot be provided.
我们描述了一位 33 岁女性的不常见临床表现,该女性随后被确定为 RP2 相关 X 连锁视网膜色素变性的携带者。
病例报告。
一位 33 岁的女性,无已知的视网膜疾病家族史,表现为左眼单侧视力下降和中心暗点。检查显示左眼有潜在的黄斑萎缩,双侧有脉络膜样反射。左眼全视野视网膜电图异常,右眼正常。广角成像的显著发现包括荧光素血管造影双侧周边血管渗漏和眼底自发荧光呈现双侧对称的放射状高荧光模式。基因检测显示 RP2 基因存在致病性变异,证实她是 X 连锁视网膜色素变性的携带者。
我们描述了 RP2-XLRP 携带者状态的临床特征,并扩展了潜在的发现,包括周边血管渗漏。该病例强调了对携带者状态的认识的重要性,特别是如果无法提供家族史。