Focal granulomatous inflammation
Temporal arteritis
Transmural w/ fibrinoid necrosis
Polyarteritis nodosa
Autoamputation of digits
Beurger’s disease
p-ANCA + palpable purpura
Microscopic polyangiitis
c-ANCA
Wegner
Eosinophilia + p-ANCA
Churg-Strauss
IgA immune complexes
Henoch-Schonlein purpura
Medial band-like calcification
Monckeberg arteriosclerosis
Onion-skinning in small arteries
Arteriolosclerosis 2/2 hypertension
Cholesterol crystals
Atherosclerosis