<P> Sinusitis ( or rhinosinusitis ) is defined as an inflammation of the mucous membrane that lines the paranasal sinuses and is classified chronologically into several categories : </P>
<P> Sinusitis ( or rhinosinusitis ) is defined as an inflammation of the mucous membrane that lines the paranasal sinuses and is classified chronologically into several categories : </P>
inflammation of the mucous membranes of the sinuses is called
inflammation of the mucous membranes of the sinuses is called
Sinusitis ( or rhinosinusitis )
Sinusitis ( or rhinosinusitis )