From:  Real-life effectiveness of mepolizumab on remission and chronic rhinosinusitis with nasal polyps in severe eosinophilic asthma

 Endoscopic nasal polyp score.

Polyp score by each nostrilPolyp size
Score 0No polyps
Score 1Small polyps in the middle meatus not reaching below the inferior border of the middle concha
Score 2Polyps reaching below the lower border of the middle turbinate
Score 3Large polyps reaching the lower border of the inferior turbinate or polyps medial to the middle concha
Score 4Large polyps causing almost complete congestion/nasal obstruction of the inferior meatus

Reprinted with permission from [33]. © Copyright-2021 Sage Publications.