Microscopic polayngiitis (MPA) is a form of necrotizing small vessel vasculitis that affects venules, capillaries, arterioles and small arteries, although occasionally it may involve medium-sized arteries. Clinical, epidemiological and pathological differences warrant the separation of MPA from polyarteritis nodosa, while the absence immunoglobulin deposits in vessel walls distinguishes it from other small vessel vasculitides. MPA shares many clinical and pathological features with Wegener's granulomatosis and Churg-Strauss syndrome, all small vessel antineutrophil cytoplasmic antibodies (ANCA)-associated vasculitides. The main clinical, pathological and therapeutic features of MPA are reviewed.
|Translated title of the contribution||The microscopic polyangiitis|
|Number of pages||8|
|Journal||Progressi in Reumatologia|
|Publication status||Published - 2004|
ASJC Scopus subject areas