IS IT BENIGN CRANIAL HYPERTENSION OR CERE BRAL VENOUS THROMBOSIS

The diagnosis of benign intracranial hypertension (BICH) is a diagnosi s of exclusion that can be made only if cerebral imaging studies are n ormal, Three cases are reported in which BICH was diagnosed initially based on normal physical and computed tomography findings, Cerebral ve nous thrombosis was subsequently demonstrated, by cerebral angiography and magnetic resonance angiography in two patients and by a postmorte m examination in one, Diagnostic criteria for benign intracranial hype rtension are reviewed with emphasis on the value of angiography and ma gnetic resonance angiography for ruling out cerebral venous thrombosis .