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. 2020 Nov 2;40(7):1866–1892. doi: 10.1148/rg.2020200195

Figure 9d.

Viral encephalitis in a 57-year-old man with a history of hypoxemic respiratory failure who required intubation in the setting of COVID-19 pneumonia. The hospital stay was complicated by hypercoagulability in the setting of COVID-19. (a, b) Axial (a) and coronal (b) T2-weighted (T2) FLAIR MR images show an infiltrative pattern of heterogeneous signal abnormality (arrows) throughout the left cerebral hemisphere involving the frontal, temporal, and occipital lobes, as well as the basal ganglia and thalamus. (c) Axial susceptibility-weighted image (SWI) shows multiple nodular and curvilinear foci of abnormal magnetic susceptibility (arrows), consistent with foci of parenchymal and subarachnoid hemorrhage. (d) Axial postcontrast T1-weighted MR image shows an amorphous curvilinear pattern of avid contrast enhancement (arrows).

Viral encephalitis in a 57-year-old man with a history of hypoxemic respiratory failure who required intubation in the setting of COVID-19 pneumonia. The hospital stay was complicated by hypercoagulability in the setting of COVID-19. (a, b) Axial (a) and coronal (b) T2-weighted (T2) FLAIR MR images show an infiltrative pattern of heterogeneous signal abnormality (arrows) throughout the left cerebral hemisphere involving the frontal, temporal, and occipital lobes, as well as the basal ganglia and thalamus. (c) Axial susceptibility-weighted image (SWI) shows multiple nodular and curvilinear foci of abnormal magnetic susceptibility (arrows), consistent with foci of parenchymal and subarachnoid hemorrhage. (d) Axial postcontrast T1-weighted MR image shows an amorphous curvilinear pattern of avid contrast enhancement (arrows).