Based on the clinical features of cytologically intrinsic chronic rhinosinusitis with nasal polyps.

Background: The clinical phenotypes of CRS, such as the presence or absence of polyps, cannot well reflect the pathophysiological mechanisms and characteristics of patients. Only by distinguishing the different internal types of CRS can we individualize patients more accurately.

Objective: To investigate the clinical characteristics of chronic rhinosinusitis with different cell types (CRSwNP), and to provide a reference for the diagnosis and treatment of CRSwNP.