与视网膜中央动脉阻塞相关的乳头前动脉环：一例报告
Prepapillary Arterial Loop Associated with Central Retinal Artery Occlusion: A Case Report.
作者信息
Susanna Bianca Nicolela, Barbosa Gabriel Castilho Sandoval, de Almeida Luciana, Neto Julio Zaki Abucham
机构信息
Department of Ophthalmology of the ABC Foundation School of Medicine, Santo André, Brazil.
Department of Vitreous and Retina, Suel Abujamra Institute of Ophthalmology, São Paulo, Brazil.
出版信息
J Curr Ophthalmol. 2021 Jul 5;33(2):212-214. doi: 10.4103/joco.joco_179_20. eCollection 2021 Apr-Jun.
PURPOSE
To report a case of central retinal artery (CRA) occlusion secondary to prepapillary loop in a 13-year-old girl.
METHODS
A 13-year-old girl presented with a history of sudden visual loss in her left eye.
RESULTS
Fundus examination confirmed thrombosis in a prepapillary arterial loop causing CRA occlusion and extensive retinal ischemia. Macular region was watered by an anomalous macular branch, which explained her 20/20 vision central vision.
CONCLUSION
Congenital prepapillary vascular loops are rare and usually asymptomatic. We report a case of central artery occlusion confirmed by multimodal imaging.
目的
报告一例13岁女孩因视乳头前血管袢导致的视网膜中央动脉（CRA）阻塞。
方法
一名13岁女孩出现左眼突然视力丧失的病史。
结果
眼底检查证实视乳头前动脉袢内血栓形成，导致CRA阻塞和广泛的视网膜缺血。黄斑区由一支异常的黄斑分支供血，这解释了她中心视力为20/20的原因。
结论
先天性视乳头前血管袢罕见且通常无症状。我们报告一例经多模态成像证实的中央动脉阻塞病例。
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