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dia vasculiti - Medud08

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PAN-poliarterite nodosa e MPA-micropoliarterite<br />

PAN MPA<br />

Istologia v. necrotizzante a cellule miste v. necrotizzante a cellule miste<br />

raramente granulomatosa non granulomatosa<br />

Impegno d’organo distintivo<br />

Rene vasculite renale (35%); art. GN rapidamente progressiva<br />

interlobari arciformi e arteriole focale necrotizzante (100%)<br />

infarti renali e microaneurismi<br />

ipert. renovascolare<br />

Polmone raro impegno capillarite e<br />

(interstiziopatia, infiltrati) possibili emorragie alveolari (29%)<br />

Neuropatia periferica 50-80% 10-20%<br />

(mononeurite multipla-polineurop.)<br />

P-ANCA rari (< 20%) frequenti (50-80%)<br />

Infez. da HBV / HCV possibile no<br />

Angiografia ev. anormale normale<br />

(microaneurismi, stenosi, dilataz.)

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