Fig. 1From: Sudden vision loss and neurological deficits after facial hyaluronic acid filler injectionInitial MRI of the brain. Coronal (a) and axial (b) diffusion weighted imaging (DWI) b = 1000 images and corresponding apparent diffusion coefficient (ADC) maps (c, d) depicting high b = 1000 DWI signal and low ADC in the left optic nerve of our patient at presentationBack to article page