For the life of me I can't find anywhere to buy a 30 x 20 fixed-bar return grille.
Chronic intracranial hypertension can be caused by many conditions including certain drugs such as tetracycline, a blood clot in the brain, excessive intake of vitamin A, or brain tumor. It can also occur without a detectable cause. This is idiopathic intracranial hypertension (IIH). Because the symptoms of IIH can resemble those of a brain tumor, it is sometimes known by the older name pseudotumor cerebri, which means âfalse brain tumor.â.
Causes for Hypertension. Over 90% of the time, an identifiable cause for hypertension cannot be found. This is known as primary or essential hypertension. The term essential arose from a belief long ago that an increased pressure was essential to maintain blood perfusion through an abnormal arterial system.