Cerebral venous thrombosis

Cerebral venous thrombosis

Cerebral venous thrombosis results from occlusion of a venous sinus and/or cortical vein and usually is caused by a partial thrombus or an extrinsic compression that subsequently progresses to complete occlusion (7).
Dehydration, pregnancy, a hypercoagulable state and adjacent infection (eg, mastoiditis) are predisposing factors.
Cerebral venous thrombosis is an elusive diagnosis because of its nonspecific presentation.
It often presents with hemorrhagic infarction in areas atypical for arterial vascular distribution.
Imaging plays a key role in the diagnosis.
On the far left a MRA with non-visualization of the left transverse sinus.
Since the venous anatomy is variable, this can be due to absence of the transverse sinus or thrombosis.
The T1W-image on the right clearly demonstrates, that there is a transverse sinus on the left, so the MRA findings are due to thrombosis.
Continue with next images.