Fig. 8.

(a) Axial non-contrast CT image of the brain shows hyperdensity of the superior sagittal sinus (arrow) and cortical veins (arrowheads) in a patient who presented with severe headache. (b) Sagittal non-contrast CT image shows that the superior sagittal sinus (arrowheads) has higher attenuation compared to the vein of Galen (arrow). (c) Sagittal contrast-enhanced MR venogram of the same patient shows a linear filling defect within the superior sagittal sinus (arrowheads), confirming the diagnosis of superior sagittal sinus thrombosis.