Article Figures & Data
Figures
- Fig 1.
Unenhanced CT scans of the brain.
A, Hyperattenuation in midline of the posterior fossa (arrow) was initially misinterpreted as cerebellar hemorrhage and later misinterpreted as sinus thrombosis.
B and C, Higher sections reveal abnormally increased attenuation of straight sinus and superior sagittal sinus (arrows) caused by polycythemia.
- Fig 2.
MR images and time-of-flight MR venogram of the brain.
A, Axial proton density-weighted (6200/105/1 [TR/TE/NEX]) MR image reveals normal flow voids in the straight sinus and sagittal sinus.
B, Contrast-enhanced T1-weighted (414/17/1) image reveals normal flow in the venous sinuses.
C, Time-of-flight MR venogram (30/6) shows normal flow in the straight sinus and superior sagittal sinus.
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