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9 Cards in this Set
- Front
- Back
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whats PAN ??
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polyarteritis nodosa...
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arteries involved in PAN??
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small muscular arteries
medium sized muscular arteries RENAL VESSELS VISCERAL VESSELS it does not involve arterioles,cap,venules IT MAY INVOLVE ONLY A PORTION OF VESSEL CIRCUMFERENCE OR IT MAY SPECIFICALLY AFFECT BRANCHING POINTS AND BIFURCATIONS. |
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is PAN systemic or local disease??/
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systemic
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which vessels are spared in PAN?/
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arterioles,cap,venules
PULM CIRCULATION |
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PAN Occurs in which organ??
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can occur in any organ
esp KIDNEYS HEART LIVER GIT |
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are lungs involved in PAN?
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no yaaaaaar neverr
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GROSS MORPHOLOGY PAN??
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INFLAMMATION..that is
segmental TRANSMURAL necrotizing erosion ( segmental erosion) weakening of wall -> due 2 infl aneurysms rupture impaired perfusion ulcerations infarcts ischemic atrophy hemorrhages |
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histopathology PAN?/
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IN ACUTE PHASE
1-transmural infl of wall 2-neutro,eosiono,mononucl cells infiltr 3-fibrinoid necr 4-thrombosed lumen LATER 1-acute infl infilte disappears 2-fibrous thickening of wall --> that may extend to adventitia 3-firm nodularity |
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whatz the particular characteristic of PAN?/
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all stages of disease may coexist in diff vessels or even within the same vesel
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