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Nonrecurrent and recurrent CRSwNPs needing revision surgery have different types of inflammatory patterns. Nonrecurrent CRSwNPs exhibits a mixed pattern of T helper (Th) cytokines with significant higher levels of IFN-gamma and lower concentrations of IgE, ECP, and IL-5 as compared with recurrent CRSwNPs that had a predominant Th2 type of inflammation.
Zele et al. (Thu,) studied this question.
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