The Meltzer Clinical Scoring System is a 0–4 nasal polyp grading system:
0 = no polyps
1 = polyps confined to the middle meatus
2 = multiple polyps occupying the middle meatus
3 = polyps extending beyond middle meatus
4 = polyps completely obstructing the nasal cavity
Meltzer EO, Hamilos DL, Hadley JA et al. Rhinosinusitis: developing guidance for clinical trials. J All Clin Immun 2006;118:17–61.
Contributed by Alex Goel, MD