- Inflammatory polyps: Type 2 inflammation (IL4, IL5, IL13 = Eosinophils and IgE
- CRS
- Aspirin exacerbated respiratory disease (AERD)
- Allergic fungal rhinosinusitis (AFRS)
- Cystic fibrosis
- PCD
- Eosinophilic GPA (triad of asthma, eosinophilia, rhinosinusitis)
- Nasal congestion, rhinorrhea, anosmia, facial pain
- Duration, progression, laterality and severity of symptoms
- Allergic history
- Samters triad for AERD: Aspirin sensitivity, polyps, asthma
- Red flags: Bleeding, facial numbness, visual symptoms

1Polyp arising from middle meatus