Perspectives on the Etiology of Chronic Rhinosinusitis: An Immune Barrier Hypothesis

Abstract excerpt

BACKGROUND: Chronic rhinosinusitis (CRS) has been defined as persistent symptomatic inflammation of the nasal and sinus mucosa resulting from the interaction of multiple host and environmental factors. Recent studies have implicated Alternaria fungi or toxigenic Staphylococcus aureus as critical agents in CRS pathogenesis. The emphasis on environmental agents in CRS etiology has focused interest toward...

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