Figure 3.

The axial section T2WI (A) and post-Gd enhancing (B) MR images show stage III parenchymal change with hyperintensity surrounded with mild edema (arrow) and faint contrast enhancement (black arrow) over both posterior and parieto-occipital regions. The empty delta sign (arrow) within the right transverse sinus on contrast enhancing sagittal MRI is evident (C). Poor visualization of the superior sagittal and both transverse sinuses on 2D TOF MRV is noted (D). The PA (E) and lateral view (F) in the venous phase of the carotid angiogram show the absence of both transverse sinuses and a filling defect (black arrow) caused by an intraluminal thrombus.