Abstract:A 61-year-old vascular patient presented with headache and subacute blindness in the left eye. Remaining American College of Rheumatology criteria were negative. Sonography of the temporal artery revealed no halo sign, but due to low sensitivity, vasculitis could not be excluded.1 Transorbital examination revealed hyperechogenic retrobulbar spot sign (figure), which is highly specific for embolic occlusion of the central retinal artery.2 Comprehensive diagnostic workup revealed paroxysmal atrial fibrillation a… Show more
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