What determines the range of clinical symptoms of CVST?
The location of the thrombosis and the collateral blood flow.
What are the most common clinical symptoms in patients with cerebral venous thrombosis?
Headache (90%) followed by papilledema (45%) due to intracranial hypertension, focal neurological deficits(40%), seizures(37%), and altered consciousness.
From the patient's presentation, can you note a possible cause?
Elevated hematocrit levels, diabetes, and AH are factors that favor thrombocythemia.
From individual medical record can you note any risk factor of CVST?
The history of colorectal cancer.
Irregularly shaped hemorrhage in the right parietal lobe on the edge of white and gray matter. Parenchymal hemorrhage can be seen in one-third of cases of cerebral venous thrombosis.
Abnormal hyperattenuation consistent to direct visualization of a clot in the straight sinus on a non-enhanced CT scan (dense clot sign) (in 1/3 of cases)
Note the hyperdense presentation of superior sagittal sinus (dense delta / filled triangle sign). This is not specific and can be observed occasionally in patients with an elevated hematocrit.
Contrast-enhanced CT image shows a central filling defect in the SSS, surrounded by intensely enhanced dura mater (empty delta / empty triangle sign). It is seen in 25–52% of patients with sagittal, straight, and lateral sinus thrombosis.
View the difference on CT scan after 30 days.