Fig. 2

Radiographic findings of the patient in case 2. A: Brain plain MRI FLAIR sequence shows multiple high-signal intensity patches in bilateral frontal parietal cortex and subcortical white matter. B: MRV shows a locally narrowed right sigmoid sinus, while the left transverse sinus and sigmoid sinus are not shown. C and D: Post-contrast MRI T1WI shows filling defects in the right sigmoid sinus, left transverse sinus, and sigmoid sinus. E: After 6 months, the re-examination image shows that the right sigmoid sinus is normal, and the filling defect of the left transverse sinus and sigmoid sinus was better than before