Fig 3.

Patient 3, a 64-year-old woman with headaches and cortical venous thrombosis.

A, Axial FLAIR (10,002/158/2200) MR image shows focal sulcal hyperintensity (arrows), representing SAH, at the right frontoparietal convexity.

B, Axial CT image at the same level as the FLAIR image in panel A, obtained the following day, confirms the presence of SAH (arrow).

C, Right parasagittal T1-weighted (500/14) MR image shows luminal hyperintensity (arrow) in a right convexity cortical vein, probably the vein of Trolard; this was also identified on multiple adjacent sections.