| Venous sinus thrombosis |
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| Saturday, 29 May 2010 15:24 |
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History (HX): Headache, blurred vision & diplopia as well as vertigo & ataxia for 3 days. Findings: Increased signal intensity within the superior sagital ,both transverse & sigmoid sinuses & possibly in straight sinus. On MIP images the superior sagital ,transverse & sigmoid sinuses on both sides can not be seen. Cortical veins are prominent. Diagnostic (DX): Venous sinus thrombosis in superior sagital, transverse & sigmoid sinuses. Discussion: MRI in combination with MR venography is virtually always the imaging tool of choice for diagnosis and often for follow-up of venous sinus thrombosis. The MR findings relate directly to the imaging of thrombus within the dural sinuses and the secondary parenchymal changes that occur as a result of the venous outflow obstruction. |
