Large Vessel

• Takayasu arteritis
• Giant cell arteritis (temporal arteritis)
• Behçet disease
  

Medium Vessel

• Polyarteritis nodosa
• Buerger disease
  

Small Vessel

• Cutaneous leukocytoclastic angiitis ("hypersensitivity vasculitis")
• Henoch-Schönlein purpura
• Essential cryoglobulinemia

ANCA-associated

• Wegener granulomatosis
  
• Microscopic polyangiitis
• Churg-Strauss syndrome