What is (are) Vasculitis Syndromes of the Central and Peripheral Nervous Systems ?
Vasculitis is an inflammation of blood vessels, which includes the veins, arteries, and capillaries. Inflammation occurs with infection or is thought to be due to a faulty immune system response. It also can be caused by other immune system disease, an allergic reaction to medicines or toxins, and by certain blood cancers. Vasculitic disorders can cause problems in any organ system, including the central (CNS) and peripheral (PNS) nervous systems. Vasculitis disorders, or syndromes, of the CNS and PNS are characterized by the presence of inflammatory cells in and around blood vessels, and secondary narrowing or blockage of the blood vessels that nourish the brain, spinal cord, or peripheral nerves.
                
A vasculitic syndrome may begin suddenly or develop over time. Symptoms include headaches, especially a headache that doesnt go away; fever, rapid weight loss; confusion or forgetfulness leading to dementia; swelling of the brain, pain while chewing or swallowing; paralysis or numbness, usually in the arms or legs; and visual disturbances, such as double vision, blurred vision, or blindness
                
Some of the better understood vasculitis syndromes are temporal arteritis (also called giant cell arteritis or cranial arteritis--a chronic inflammatory disorder of large blood vessels) and Takayasus disease, which affects larger aortas and may cause stoke.