Acute sinusitis due to Klebsiella pneumoniae

Acute sinusitis due to *Klebsiella pneumoniae* is an acute bacterial infection of the paranasal sinus mucosa caused by the encapsulated, Gram-negative bacillus *Klebsiella pneumoniae* Unlike typical community-acquired sinus infections, this presentation predominantly affects hospitalized, critically ill, or immunocompromised individuals, frequently occurring as a nosocomial infection associated with prolonged endotracheal or nasogastric intubation Clinically, it manifests with fever, purulent na...

Acute sinusitis due to *Klebsiella pneumoniae* is an acute bacterial infection of the paranasal sinus mucosa caused by the encapsulated, Gram-negative bacillus *Klebsiella pneumoniae*

Unlike typical community-acquired sinus infections, this presentation predominantly affects hospitalized, critically ill, or immunocompromised individuals, frequently occurring as a nosocomial infection associated with prolonged endotracheal or nasogastric intubation Pathophysiologically, mechanical or inflammatory obstruction of sinus ostia allows the opportunistic organism to proliferate, triggering mucosal swelling, impaired mucociliary clearance, and accumulation of purulent exudate

Pathophysiologically, mechanical or inflammatory obstruction of sinus ostia allows the opportunistic organism to proliferate, triggering mucosal swelling, impaired mucociliary clearance, and accumulation of purulent exudate Clinically, it manifests with fever, purulent nasal discharge, sinus pressure or pain, and leukocytosis, carrying heightened concern for multidrug resistance and invasive local or systemic spread

Clinically, it manifests with fever, purulent nasal discharge, sinus pressure or pain, and leukocytosis, carrying heightened concern for multidrug resistance and invasive local or systemic spread