IGHE and nasal cavity polyp: However, we were not able to demonstrate any correlation between the concentrations of IgE in nasal polyp homogenates and the amount of histamine release (r = 0.05, p = 0.9) (r = 0.1, p = 0.8), leukotriene release (r = 0.3, p = 0.4) (r = 0.4, p = 0.3) and PGD2 release (r = 0.3, p = 0.4) (r = 0.2, p = 0.5) after anti-IgE 10 μg/ml and anti-IgE 30 μg/ml stimulation respectively.