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Arteritis is a vascular disorder characterized by inflammation of the walls of arteries, [1] ... the blood flow within the blood vessels. [4] ... supplying the head, ...
The underlying mechanism involves inflammation of the small blood vessels that supply the walls of larger arteries. [4] This mainly affects arteries around the head and neck, though some in the chest may also be affected. [4] [8] Diagnosis is suspected based on symptoms, blood tests, and medical imaging, and confirmed by biopsy of the temporal ...
Vasculitis is a group of disorders that destroy blood vessels by inflammation. [2] Both arteries and veins are affected. Lymphangitis (inflammation of lymphatic vessels) is sometimes considered a type of vasculitis. [3] Vasculitis is primarily caused by leukocyte migration and resultant damage. Although both occur in vasculitis, inflammation of ...
Cerebral vasculitis (sometimes the word angiitis is used instead of "vasculitis") is vasculitis (inflammation of the blood vessel wall) involving the brain and occasionally the spinal cord. [1] It affects all of the vessels: very small blood vessels ( capillaries ), medium-size blood vessels ( arterioles and venules ), or large blood vessels ...
Now, polyarteritis nodosa causes transmural inflammation, which means the entire wall, the tunica intima, media, and adventitia are all affected. This inflammation causes the vascular wall to die through all three layers of the artery and fibrosis occurs as the vascular wall heals, this process is called fibrinoid necrosis.
The signs and symptoms of GPA are highly varied and reflect which organs are supplied by the affected blood vessels. Typical signs and symptoms include nosebleeds, stuffy nose and crustiness of nasal secretions, and inflammation of the uveal layer of the eye. [3] Damage to the heart, lungs, and kidneys can be fatal. The cause of GPA is unknown.
"Inflammation is the body's natural response to injury or infection. It's a complex process that involves the immune system, blood vessels and molecular mediators."
Takayasu's arteritis (TA), also known as aortic arch syndrome, nonspecific aortoarteritis, and pulseless disease, [2] is a form of large vessel granulomatous vasculitis [3] with massive intimal fibrosis and vascular narrowing, most commonly affecting young or middle-aged women of Asian descent, though anyone can be affected.