No statistical differences were observed between the nasal polyps of non-allergic CRSwNP and those of allergic CRSwNP regarding collagen deposition (Figure 6, p > 0.66), goblet cell hyperplasia (Figure 7, p < 0.87), infiltration of CD3+ (Figure 8, p < 0.22) and CD11c+ cells (Figure 9, p > 0.41). This evidence concerns the gene ITGAX and nasal cavity polyp.