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. 2023 Jan 16. Online ahead of print. doi: 10.1016/j.neurad.2023.01.005

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Fig 3 — Example of leptomeningeal enhancement in a patient with COVID-19. Spin-echo T1-weighted and FLAIR sequences before (A and B) and after (C and D) injection of gadolinium-based contrast agent, showing a diffuse leptomeningeal enhancement after injection. In this study, post-contrast FLAIR was the reference sequence used to assess leptomeningeal enhancement.