Large vessel vasculitis is when the largest arteries in the body are affected, such as the aorta and carotid arteries. Some of the most common types of large vessel vasculitis include giant cell arteritis and Takayasu arteritis.
Medium vessel vasculitis affects the medium-sized blood vessels. Polyarteritis nodosa and Kawasaki disease are 2 common causes of medium vessel vasculitis.
Small vessel vasculitis affects the smallest blood vessels in the body. Some common causes for small vessel vasculitis include Churg-Strauss syndrome and Granulomatosis with polyangiitis.