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Fig. 4 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 4

From: Imaging of COVID-19 vasculopathy from head to toe: Egyptian collective experience after 2 years of the pandemic

Fig. 4

The above-mentioned patient in (Fig. 3) performed chest CT as well as brain CTA and CTP two hours later. [A] Chest CT image (lung window) revealed bilateral basal ill-defined ground-glass patches (suspicious for COVID-19 infection). [B] Initial non-contrast brain CT images revealed a large left frontotemporal, tempro-parietal, and tempro-occipital hypo-dense area (green arrow) implicating the cortical and subcortical white matter and extending to the left basal ganglia with effacement of the cortical sulci and left Sylvian fissure. CTA coronal MIP image [C] and volume rendering image [D] showed total occlusion and non-opacification of the intracranial segment of the left ICA and left MCA. Non-perfusion of this large area was noted in dynamic CT-perfusion [E, F]. An obvious diffusion-perfusion mismatch was noted denoting significant penumbra [G]. PCR test result was revealed to be positive for COVID-19

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