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Chronic Rhinosinusitis Definition (clinical) :
• Inflammatory response involving the following: mucous membranes, nasal cavity and paranasal sinuses.
• Fluid within the cavities and/or underlying bones. • Symptomatic: nasal obstruction, congestion,
discharge, purulent, postnasal drip, facial pressure and pain.
• Duration: 12 weeks• Positive physical signs of nose and face.• Ancillary studies: radiology.
Rhinosinusitis: Classification
• Based on temporal nature:– Acute (<4 weeks)– Subacute (4-12 weeks)– Recurrent acute (> 4 episodes per year)– Chronic (>12 weeks)– Acute exacerbation of chronic
Chronic adult rhinosinusitis
• Lasting > 12 weeks
• Diagnostically proven (major and minor clinical features)