CHORUS
Collaborative Hypertext of Radiology
Multisystem entities
About CHORUS
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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
Copyright © 2013, Charles E. Kahn, Jr.
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