systemic necrotizing vasculitis which induced by immune complexes, these
complexes found accumulate in vessel walls by deposition from circulation, by in
situ formation or by combination of these mechanism.

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All are true regard to Hyperplastic arteriolosclerosis

any organ or tissue of the body
may be affected except kidney and aorta in Polyarteritis nodosa

Regard toThe clinical signs and symptoms of Polyarteritis nodosa all true except:

Clinical diagnosis depend on biopsy of suspected areas of involvement especially
kidney and smooth muscles.

Wegener's granulomatosis:-
It's a disease of small to mdedium-sized arteries, the type of vasculiltis is necrotizing only .

clinical signs and symptoms ofWegener's granulomatosis is very similar to PAN but the lung is involved.

Microscopic polyangitis:-
This type of necrotizing vasculitis generally affects larger vessels than PAN

Microscopic polyangitis It's usually wide spread but especially the skin, necrotizing glomerulonephritis
and pulmonary capillaries are common

clinical presentation includes of Microscopic polyangitis
Hemoptysis, hematuria, proteinuria, muscle pain or weakness and palpable
purpura.

Regarding to Temporal arteritis all true except

Clinical signs and symptoms of Temporal arteritis
characterized by facial pain, headache, , and often most intense along the course of the
superficial temporal artery, the vessel may be nodular and painful to palpation.

Kawasaki's disease:-
It's usually occur in small and medium-sized arteries, which occur in skin,
ocular, nasal mucosa and coronary artery

the disease is self limiting but the
most important complication, when involve coronary artery with formation of
aneurysm, thrombosis and death from M.I in 0.5 to 1% of cases.

The etiology supposed that formation of
autoantibodies to endothelial and smooth muscle cells leading to acute
vasculitis.

Regarding to Buerger's disease all are true except

Which is usually associated with thromboangiitis obliterans?