COVID-19(3) COVID(2) PRES(2) SARS-CoV-2 virus(2) Multi-system inflammatory syndrome(2) leukoencephalopathy(2) Complication(2) Posterior reversible encephalopathy syndrome(2) Anosmia(2) Large vessel occlusion(2) stroke(2) ADEM(2) Venous sinus thrombosis(2) Subacute(1) post-COVID syndrome(1) SARS-CoV-2(1) finding(1) chronic(1) Neuroimaging(1)