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Figure 10a. (a) Contrast-enhanced CT image in a patient with superior sagittal sinus thrombosis shows a central filling defect in the superior sagittal sinus (arrow), surrounded by intensely enhanced dura mater. (b) Coronal reformatted image from contrast-enhanced MR venography in another patient shows a nonenhanced thrombus (arrows) surrounded by enhanced sinus walls and dural cavernous spaces. The thrombus extends from the superior sagittal sinus through the sinus confluence and into the right transverse sinus.
