<prompt> Small vessel vasculitis are -Classical PANWegners granulomatosisGiant cell aeritisAll  <response>: Inflammation of vessel wall is called vasculitis. o Of these systemic necrotizing vasculitis, several types affect the aoa and medium sized vessels, but most affect small vessels, such as aerioles, venules, and capillaries -- small vessel vasculitis. Large vessel vasculitis Medium vessel vasculitis Small vessel vasculitis o Giant cell aeritis o Polyaeritis nodosa ANACA positive ANCA negative Temporal aeritis o Kawasaki disease o Wegner;s granulomatosis o Bechet;s syndrome o Takayasu aeritis o Buerger;s disease o Microscopic polyangitis o Hypersensitivity o Cogan syndrome o Churg strauss syndrome o Uicarial vasculitis o Drug induced REF: Harrison book of internal medicine 21ST EDITION 