Axial T2 and Flair images show areas of hyperintensity in the deep white matter
as well as the left thalamus. The abnormal foci span multiple vascular territories.
T1 images show increased signal consistent with methemoglobin in the superior sagittal
sinus, vein of Galen and left transverse sinus. Flair image (left) shows area of increased
signal suggesting hemorrhagic venous infarcts in a para-falcine distribution.
Post contrast images show thrombus instead of flow in the superior sagittal sinus.
MR venogram shows absent signal in the superior sagittal sinus, deep cerebral
veins and straight sinus.
Key words: mri mrv vascular stroke
Thrombosis superior sagittal
sinus & deep venous system