Fig 3.

Subacute onset of isolated deep cerebral venous thrombosis in a patient with COVID-19. A, Noncontrast head CT, axial view, reveals an infarct of the left basal ganglia and thalamus, with hemorrhagic transformation and intraventricular hemorrhage with obstructive hydrocephalus. B, Noncontrast head CT, sagittal reconstruction, reveals hyperdensity in the topography of the vein of Galen (short arrow) and left internal cerebral vein (long arrow), corresponding to deep venous thrombosis. C, CT of the chest, axial view, demonstrates patchy multifocal airspace opacities combining ground-glass and consolidation in different lobes, suggestive of pneumonia/pneumonitis. D, CT venogram, MPR sagittal reconstruction, shows a filling defect in the vein of Galen (short arrow), internal cerebral veins (long arrow), and the anterior aspect of the inferior sagittal sinus, confirming deep venous thrombosis.