Table 1 Classification of Nasal Polyps
From: Indications, Efficacy, and Safety of Intranasal Corticosteriods in Rhinosinusitis
Histological | Â |
   Type 1 | Eosinophilic edematous type |
   Type 2 | Chronic inflammatory or fibrotic type |
   Type 3 | Seromucinous gland type |
   Type 4 | Atypical stromal type |
Clinical and endoscopical | Â |
   Type 1 | Antrochoanal polyps |
   Type 2 | Large isolated polyps |
   Type 3 | Polyps associated with CRS--noneosinophil dominated, not related to hyperreactive airway syndromes |
   Type 4 | Polyps associated with CRS--eosinophil dominated |
   Type 5 | Polyps associated with specific disease(eg, cystic fibrosis, nonallergic sinusitis, malignancy) |