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Bent and Kuhn criteria.
| Major Criteria | Minor Criteria |
|---|---|
| Type I hypersensitivity (IgE testing, skin testing or clinical history) | Unilateral disease |
| Nasal polyps | Asthma |
| Characteristic radiology (CT findings) | Bone erosion/expansion on CT |
| Presence of eosinophilic mucin without invasion | Fungal cultures |
| Positive fungal stain | Eosinophilia |
| Charcot–Leyden crystals in mucin |
