ނPނQ fig
1 2
large artery leukocytoclastic polyarteritis nodosa(}P)
large vein leukocytoclstic Wegener's granulomatosis
large vein nonleukocytoclstic thromboplebitis(}Q)
lrge artery nonleukocytoclastic nodular vsculitis
small venuleneutropils leukocytoclastic vasculitis(nuclear dust,fibrin often in wallsof vessels) Henoch-shonlein purpuragranuloma facialeerythema elevatum diutinum(}R)
small venule-neutrophils septic vasculitis(thrombi in lumina) (}S)
small venules-neutrophiles neither leukocytoclstic nor septic vasculitis(fibrin in walls and thrombi in lumina) livedo vasculitis(}T)