Nasal lavage levels of granulocyte‐macrophage colony‐stimulating factor and chronic nasal hypereosinophilia

Abstract

Our data confirm that GM-CSF is more frequently detectable in nasal lavages of patients affected by chronic sinonasal eosinophilic inflammation than in controls. Statistical analyses revealed a significant weakly-moderate correlation between GM-CSF levels in nasal lavage of all patients and percentage of eosinophil infiltration of nasal mucosa.