• Sinusitis rarely occurs without rhinitis – rhinosinusitis
  • Pansinusitis – all sinuses
  • Acute rhinosinusitis
    • < 4 weeks
    • Maxillary sinus > ethmoidal cells
    • Etiology
      • Spread of rhinitis
      • Viruses
        • Rhinovirus
        • Coronavirus
      • Bacteria
        • S. pneumoniae
        • H. influenzae
      • Spread of dental root infection
    • Clinical features
      • Symptoms of rhinitis
      • Pain over sinus
      • Headache – worsens when bending over
    • Diagnosis
      • Rhinoscopy/endoscopy – pus, swollen mucosa
      • Sinus radiography – partial opacification of affected sinus or fluid level
    • Treatment
      • Conservative
        • Ventilation, drainage improvement
          • Decongestants
        • Antibiotics
      • Surgery
        • Puncture of wall