Histopathologic analysis in the diagnosis and management of chronic rhinosinusitis

Purpose of review New research in the pathogenesis of chronic rhinosinusitis has shed light on an emerging classification system based on endotypes, which help to explain the individualized mechanism of disease in patients suffering from chronic rhinosinusitis with and without nasal polyps. The purpose of this review is to advocate the use of structured histopathologic analysis in the diagnosis and management of patients affected by chronic rhinosinusitis with and without polyps. Recent findings Numerous studies have demonstrated the role of inflammation in chronic rhinosinusitis and the ensuing histopatholgic changes. Few studies have implemented structured histopathologic analysis to guide diagnosis and treatment. Individualized therapy including biotherapeutics and comprehensive surgery has shown to improve outcomes in patients with refractory disease. Summary Structured histopathologic analysis can provide helpful information on the endotype of chronic rhinosinusitis. Routine use in clinical practice should be standardized especially in cases of chronic rhinosinusitis refractory to medical therapy and/or surgery.

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