<unk>  <unk> , previously known as pseudotumor cerebri and benign<unk>  hypertension, is a condition characterized by increased<unk>  pressure (pressure around the brain) without a detectable cause. The main symptoms are headache, vision problems, ringing in the ears, and shoulder pain. Complications may include vision loss. This condition is<unk> , meaning there is no known cause. Risk factors include being overweight or a recent increase in weight. Tetracycline may also trigger the condition. The diagnosis is based on symptoms and a high opening pressure found during a lumbar puncture with no specific cause found on a brain scan. Treatment includes a healthy diet, salt restriction, and exercise. The medication acetazolamide may also be used along with the above measures. A small percentage of people may require surgery to relieve the pressure. About 2 per 100,000 people are newly affected per year. The condition most commonly affects women aged 20–50. Women are affected about 20 times more often than men. The condition was first described in 1897.
Idiopathic intracranial hypertension
Brain tumor
Intracranial hypertension syndrome
Arachnoiditis
Meningitis
Subarachnoid hemorrhage
Migraine
Infectious intracranial aneurysm