PMC8240434_01
Acute onset of cerebral sinus venous thrombosis in COVID-19. A Axial thorax CT-scan showed ground-glass opacity and subpleural bilateral, with a fibrotic appearance in the left lung. B Axial head non-contrast CT-scan (NCCT scan) showed, parenchymal edema on the right parietal lobe and hyperdense cortical veins. C Sagittal NCCT scan showed parenchymal edema on the right parietal lobe and hyperdense superior sagittal sinus. D Coronal head NCCT scan showed parenchymal edema on the right parietal lobe and hyperdense superior sagittal sinus. E, F Brain CT venography showed, filling defect at SSS, TS bilateral, sigmoid sinus bilateral
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Fig1
Head contrast computed tomography (HCCT) showed cerebral edema at the right parietal lobe (Fig. 1B). There were hyperdense veins and sinuses at the right parietal lobe area, superior sagittal sinus (SSS), and bilateral transverse sinuses (TS), which suggested the presence of a cerebral sinus venous thrombosis (CSVT) (Fig. 1B-D), with a sign of venal hypertension. F). Furthermore, the thorax CT scan showed ground-glass opacity and subpleural bilateral, with a fibrotic appearance in the left lung (Fig. 1A). 
PMC8240434_02
Subacute onset of cerebral sinus venous thrombosis in a man with COVID-19 and ARDS. A Sagittal head NCCT scan showed hyperdense at superior sagittal sinus and right transverse sinuses. B Axial head NCCT scan showed hyperdense at superior sagittal sinus (white arrow) and brain parenchymal edema on the left parietal lobe. C Axial head NCCT scan showed hyperdense at right transverse sinus (white arrow). D Axial thorax CT-scan showed ground-glass opacity and subpleural bilateral, with the fibrotic appearance in both lungs
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Fig2
Head non-contrast computed tomography (NCCT) showed hyperdense at superior sagittal sinus and right transverse sinuses, which suggested the manifestations of CSVT (Fig. 2A-C). Furthermore, there was associated cerebral edema at the left frontal, parietal lobe, and cerebellum (Fig. 2B). Thrombosis at segments 8 and 9 of both lungs was also observed (Fig. 2D).