Released intranasal eosinophilic major basic protein as a diagnostic marker for polypoid chronic rhinosinusitis

Toxic eosinophil major basic protein levels are elevated in polypoid chronic rhinosinusitis patients compared to control groups that have similar clinical presentations but upon closer examination turn out not to have chronic rhinosinusitis. In the future, the detection of eosinophil major basic protein in nasal mucus may become a sensitive and specific marker for chronic rhinosinusitis and a helpful diagnostic tool.