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Course: Cystic Lesion of the Optic Nerve in an Asymptomatic Adult Woman

CME Credits: 1.00

Released: 2022-04-21

A 54-year-old asymptomatic woman presented with a spherical cystic lesion overlying the left optic nerve head, which was absent at the previous eye examination. Visual acuity was 6/9 OU; no other abnormalities were noted other than slight intraretinal fluid superior to the lesion. There was no significant medical or ophthalmic history. The patient had normal blood pressure and no other identifiable vascular risk factors. Formal B-scan ultrasonography and fundus photography (, A) identified a lesion 350 ?m in diameter overlying the optic nerve head, with low internal reflectivity and an arterial-type pattern on Doppler ultrasonography, which appeared contiguous with the central retinal artery. Fundus fluorescein angiography (, B) revealed very early filling in the arterial phase, which persisted to the late stage with only minimal leakage.


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