<prompt> Pathognomic features of Maxillary sinusitis is -Mucopus in the middle meatusInferior turbinate hypertrophyPurulent nasal dischargeAtrophic sinusitis  <response>: Characteristic finding of maxillary sinusitis on Rhinoscopy is pus or mucopus in in the middle meatus.Mucosa and turbinates may appear red and swollen.Remember: Dental infections are an important source of maxillary sinusitis. 