Intracranial venous occlusive disease is significantly less common than arterial disease. The symptoms can be nonspecific. The symptoms that are present depend upon the venous structure that is affected, the extent and rapidity of thrombosis, and the extent of venous collaterals. Common symptoms include headache, nausea, vomiting, altered consciousness, and seizures. Examination may show papilledema,
meningismus, and subtle focal neurological deficits (see Tabie.„22-2.). Possible findings on CT and MRI are presented in Tab]e..22-i3i . Diagnosis may be made with magnetic resonance venography (MRV) or conventional or digital intravenous angiography.
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