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What is pulsatile tinnitus?

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.

Tinnitus, which is the perception of sound when no external sound is present, is a complex symptom rather than a syndrome or disease. (Read more about Pulsatile Tinnitus.)

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