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Are IIH and pseudotumor cerebri the same?

This illustration shows bilateral venous sinus narrowing (red circles). As a result of the bilateral narrowing, the blood flow from the brain to the neck is compromised, contributing to intracranial hypertension and the symptoms of pseudotumor cerebri.

Pseudotumor cerebri generally causes the same symptoms as any disorder that involves increased pressure in the skull. The reason idiopathic intracranial hypertension (IIH) is commonly known as pseudotumor cerebri is because it mimics the symptoms of a brain tumor. (Read more on Symptoms of Pseudotumor Cerebri.)

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