<unk>  or central nervous system<unk>  (sometimes the word angiitis is used instead of<unk> ") is<unk>  (inflammation of the blood vessel wall) involving the brain and occasionally the spinal cord. It affects all of the vessels: very small blood vessels (capillaries), medium-size blood vessels (arterioles and venules), or large blood vessels (arteries and veins). If blood flow in a vessel with<unk>  is reduced or stopped, the parts of the body that receive blood from that vessel begins to die. It may produce a wide range of neurological symptoms, such as headache, skin rashes, feeling very tired, joint pains, difficulty moving or coordinating part of the body, changes in sensation, and alterations in perception, thought or behavior, as well as the phenomena of a mass lesion in the brain leading to coma and herniation. Some of its signs and symptoms may resemble multiple sclerosis. 10% have associated bleeding in the brain.
Cerebral vasculitis
Intracranial aneurysms
Toxic and Nutritional Optic Neuropathy
Temporal arteritis
Meningism
Intracranial berry aneurysm
Cerebral aneurysm
Cholesterol emboli syndrome