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Bent and Kuhn diagnostic criteria for AFRS
| Major criteria | Minor criteria |
|---|---|
| Type I hypersensitivity | Asthma |
| Nasal polyposis | Unilateral disease |
| Characteristic CT findings | Bone erosion |
| Eosinophilic mucin without invasion | Fungal cultures |
| Positive fungal stain |
Charcot-Leyden crystals Serum eosinophilia |
