[inflammatory process of the mucous membranes of the paranasal sinuses that occurs in three stages: acute, subacute, and chronic; results from any condition causing ostial obstruction or from pathophysiologic changes in the mucociliary transport mechanism. ( CSP )]
UMLS (CSP) C0037199 Relation/PAR: nasal disorder
Paranasal Sinus Disease
respiratory infection
Relation/CHD: Ethmoid Sinusitis
Frontal Sinusitis
Maxillary Sinusitis
Sphenoid Sinusitis