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Polyarteritis nodosa

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In hematology and rheumatology, polyarteritis nodosa is a vasculitis and "a form of necrotizing non-granulomatous inflammation occurring primarily in medium-sized arteries, often with microaneurysms. It is characterized by muscle, joint, and abdominal pain resulting from arterial infarction and scarring in affected organs."[1][2][3]

Polyarteritis nodosa usually spares the lungs. While it commonly involves renal arteries, it spares glomeruli and does not cause glomerulonephritis. If lungs are involved, the patient may have vasculitis associated with antineutrophil cytoplasmic antibodies (Wegener's granulomatosis, microscopic polyangiitis, or Churg-Strauss syndrome). If glomerulonephritis is present, the patient may have microscopic polyangiitis.[2]

References

  1. Anonymous (2020), Polyarteritis nodosa (English). Medical Subject Headings. U.S. National Library of Medicine.
  2. 2.0 2.1 Stone JH (2002). "Polyarteritis nodosa.". JAMA 288 (13): 1632-9. PMID 12350194.
  3. Henegar C, Pagnoux C, Puéchal X, Zucker JD, Bar-Hen A, Le Guern V et al. (2008). "A paradigm of diagnostic criteria for polyarteritis nodosa: analysis of a series of 949 patients with vasculitides.". Arthritis Rheum 58 (5): 1528-38. DOI:10.1002/art.23470. PMID 18438816. Research Blogging.