GCA or TA

Large vessel vasculitis

• Takayasu arteritis
• Giant cell arteritis
• PMR

Medium vessel vasculitis

• Polyarteritis nodosa
• Kawasaki disease
• Primary CNS vasculitis

Small vessel vasculitis

• Churg-Strauss - eosinophilic granulomatosis with polyangiitis
• Wegener's - granulomatosis with polyangiitis
• Microscopic polyangiitis
• H-S purpura (IgA vasculitis)
• Cryoglobulinemic vasculitis
• Hypersensitivity vasculitis
• Vasculitis secondary to connective tissue disorders
• Vasculitis secondary to viral infection
• ?Behcet syndrome