And Sinus Diseases Sponsors do not influence content. Nasal polyposis is an inflammatory condition of unknown etiology.
Nasal polyps are the most common tumors of the nasal cavity.
Incidence of nasal polyps is higher in children with cystic fibrosis and persons with known aspirin hypersensitivity. Nasal polyposis results from chronic inflammation of the nasal and sinus mucous membranes. Chronic inflammation causes a reactive hyperplasia of the intranasal mucosal membrane, which results in the formation of polyps. Gland new formation theory Ion transport theory Multiple factors play a role in nasal polyp formation. Several inflammatory factors have been isolated and proven to be expressed by nasal polyps.