CHORUS - home page


Collaborative Hypertext of Radiology

Multisystem entities



polyarteritis nodosa

necrotizing vasculitis of medium-sized arteries
  • usually in male adults
  • associated with hepatitis B antigen

  • kidney: most frquently involved organ (85%)
    • multiple small intrarenal aneurysms
    • aneurysms may disappear (thrombosis) or appear in new locations
    • arterial narrowing and thrombosis (chronic/healing stage)
    • multiple small cortical infarcts
    • associated with hypertension and renal failure

  • chest involvement (70%)
    • cardiomegaly/pericardial effusion (14%)
    • wedge shaped/round peripheral infiltrates simulating PE (14%)
    • interstitial lower lung field pneumonitis

  • also may involve liver (66%), mesenteric vessels (50%), skeletal muscle (39%), skin (20%)

Yong H. Hahn, MD  -  2 February 1995
Last updated:  1 October 2013


Related CHORUS documents:
acalculous cholecystitis
Wegener granulomatosis
eosinophilic lung disease
systemic lupus erythematosus (SLE)
acute cholecystitis
cavitary lung nodules


Copyright © 2013, Charles E. Kahn, Jr.