1. Optical coherence tomography angiography (OCT-A) of type 2 retinal arteriovenous malformation

    Optical coherence tomography angiography (OCT-A) of type 2 retinal arteriovenous malformation

    Retinal arteriovenous malformations (AVMs) are a rare congenital, nonhereditary vascular abnormality. They are typically unilateral and asymptomatic, ranging from a single arteriovenous communication to a complex anastomotic system. 1,2 The lesions most commonly involve the superotemporal arcade (41%), papillomacular bundle (34%), and optic disc (6%) 2,3 and are classified into 3 groups by Archer on the basis of capillary characteristics and systemic findings. 1 Characteristically, the lesions demonstrate rapid filling without capillary leakage on fluorescein angiography.

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