Acute maxillary Moraxella catarrhalis sinusitis

Acute maxillary *Moraxella catarrhalis* sinusitis is an acute bacterial infection of the upper respiratory tract specifically involving the mucosal lining of one or both maxillary paranasal sinuses Pathophysiologically, the condition commonly develops following viral rhinitis or ostiomeatal obstruction, which leads to impaired mucociliary clearance and allows contiguous proliferation of the gram-negative diplococcus *Moraxella catarrhalis* The condition affects both pediatric and adult populatio...

Acute maxillary *Moraxella catarrhalis* sinusitis is an acute bacterial infection of the upper respiratory tract specifically involving the mucosal lining of one or both maxillary paranasal sinuses The condition affects both pediatric and adult populations, presenting clinically with sudden-onset facial pain or pressure localized over the cheek and upper teeth, nasal congestion, purulent nasal discharge, and sometimes fever lasting fewer than four weeks

Acute maxillary *Moraxella catarrhalis* sinusitis is an acute bacterial infection of the upper respiratory tract specifically involving the mucosal lining of one or both maxillary paranasal sinuses

Pathophysiologically, the condition commonly develops following viral rhinitis or ostiomeatal obstruction, which leads to impaired mucociliary clearance and allows contiguous proliferation of the gram-negative diplococcus *Moraxella catarrhalis*

Pathophysiologically, the condition commonly develops following viral rhinitis or ostiomeatal obstruction, which leads to impaired mucociliary clearance and allows contiguous proliferation of the gram-negative diplococcus *Moraxella catarrhalis*

The condition affects both pediatric and adult populations, presenting clinically with sudden-onset facial pain or pressure localized over the cheek and upper teeth, nasal congestion, purulent nasal discharge, and sometimes fever lasting fewer than four weeks