IL5 and chronic rhinosinusitis with nasal polyps: The release of IL-5 in polyp tissue from patients with CRSwNP (6.9±1.2 pg/ml) were significantly higher compared to the release in turbinate tissue from both healthy controls (0.6±0.0 pg/ml, P<0.001) and patients with CRSwNP (0.7±0.1 pg/ml, P<0.001).