rhinosinusitis


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  • Types

  • Histology

    • mixed inflammatory infiltrate
    • squamous metaplasia
    • thickened basement membrane
    • look for fungus, inflammatory polyps

  • Ddx

    • Wegener disease
      • vasculitis
      • granuloma
      • aseptic necrosis
    • Churg-Strauss syndrome
      • eosinophilia
      • vasculitis
      • granuloma
    • primary ciliary dyskinesia
    		•