Post-Biopsy Granulomas
Epidemiology:
Common sites:
Gross features:
Histologic features:
- characteristic
appearance, distinct from infectious granulomas
- fibrinoid necrosis surrounded by palisading epithelioid histiocytes
- long, tortuous
architecture often
- granulomas without central necrosis surrounding
- multinucleated
giant cells surrounding
- minimal chronic
inflammation surrounding
Immunophenotype:
Marker:
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Sensitivity:
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Specificity:
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Molecular features:
Other features:
- frequent finding after
TURP (9d to 52mo)
- rarely after
needle biopsy
References: