Idiopathic intracranial hypertension (IIH), formerly known as pseudotumor cerebri, is increased pressure around your brain. It occurs when cerebrospinal fluid (CSF), the liquid that cushions your spinal cord …

Idiopathic intracranial hypertension (IIH), previously known as pseudotumor cerebri and benign intracranial hypertension, is a condition characterized by increased intracranial pressure (pressure …

What is idiopathic intracranial hypertension? Idiopathic intracranial hypertension (IIH) is a disorder related to high pressure in the brain. It causes signs and symptoms of a brain tumor. It's also …

Symptoms of IIH may include severe headache, nausea and vomiting, altered vision, and pulsating sounds within the head. A person with IIH may also have symptoms such as a stiff neck, back or arm …

What is idiopathic intracranial hypertension? Idiopathic intracranial hypertension (IIH) is a disorder related to high pressure in the brain. It causes signs and symptoms of a brain tumor. It's also …

Dec 17, 2025 · Idiopathic intracranial hypertension (IIH) happens when pressure inside the skull rises without a clear cause. IIH also is called pseudotumor cerebri (SOO-doe-too-mur SER-uh-bry). The …

Despite its name, it is not actually benign and can lead to serious complications if left untreated. This condition occurs when the cerebrospinal fluid surrounding the brain and spinal cord cannot properly …

Idiopathic intracranial hypertension causes increased intracranial pressure without a mass lesion or hydrocephalus, probably by obstructing venous drainage; cerebrospinal fluid (CSF) composition is …

Idiopathic intracranial hypertension is characterized by increased pressure within the skull (intracranial pressure). What triggers the disorder is unknown. People have daily or near daily headaches, …

Dec 10, 2025 · The older term benign intracranial hypertension is generally frowned upon due to the fact that some patients with idiopathic intracranial hypertension have a fairly aggressive clinical picture …