Intracranial sinus thrombosis may also be diagnosed with contrast enhanced CT, however, MRI is the investigation of choice when the diagnosis is suspected. It is sensitive, and non-invasive - in contrast to conventional cerebral angiography.
Presenting symptoms include headache, seizures, focal neurological deficits and coma. Sinus thrombosis may lead to venous infarction, haemorrage and cerebral oedema.
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