Definition: Vasculitis is the inflaamtion of blood vessel walls.

Types (size of vessels)

 small-vessel vasculitis
 medium-sized vessel vasculitis
 large-vessel vasculitis

Types (morphology)

 acute vasculitis
 chronic vasculitis

• lymphocytic vasculitis
• eosinophilic vasculitis
• granulomatous vasculitis

 necrotizing vasculitis

Localization

 cutaneous vasculitis
 renal vasculitis
 digestive vasculitis
 pulmonary vasculitis
 cerebral vasculitis

Etiology

 infectious vasculitis

• viral vasculitis
• bacterial vasculitis
• fungal vasculitis

 immune vasculitis

References

 Weyand CM, Goronzy JJ. Medium- and large-vessel vasculitis. N Engl J Med. 2003 Jul 10;349(2):160-9. PMID: #12853590#

 Jennette JC, Falk RJ. Small-vessel vasculitis. N Engl J Med. 1997 Nov 20;337(21):1512-23. PMID: #9366584#