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. 2022 Nov 30;64(5):1950–1957. doi: 10.1177/02841851221138557

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© The Foundation Acta Radiologica 2022

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Fig. 5. — (a) MR-FLAIR axial sequence shows a rounded area of hyper-intensity at the splenium of corpus callosum (white arrow). (b) This lesion is hypo-intense on T1-weighted imaging (white arrow) and involves a diffusivity restriction on (c, d) DWI/ADC maps (white arrows). This lesion is reversible and is due to an (ex)citotoxic edema mediated by COVID-19. ADC, apparent diffusion coefficient; DWI, diffusion-weighted imaging; FLAIR, fluid-attenuated inversion recovery; MR, magnetic resonance imaging.