[Cytokine profile of chronic rhinosinusitis without polyps].

Introduction: Chronic rhinosinusitis (CRS) is the most common immunological ENT disease, which has several phenotypes. The heterogeneity of CRS is due to the peculiarities of their pathogenetic mechanisms - the system of cytokines plays the crucial significance. They are biologically active substances and present regulatory peptides that demonstrate an immunomodulatory and regulatory effects not only in the local level but the system level as well.