Acute Proteus mirabilis otitis externa

Acute *Proteus mirabilis* otitis externa is a rapid-onset bacterial infection and inflammation of the external auditory canal caused by susceptible strains of the facultatively anaerobic, Gram-negative bacillus *Proteus mirabilis* Occurring in pediatric and adult populations, the condition typically arises when the physiological acidic barrier and protective cerumen layer of the external ear canal are compromised by moisture exposure, microtrauma, or local irritation

Acute *Proteus mirabilis* otitis externa is a rapid-onset bacterial infection and inflammation of the external auditory canal caused by susceptible strains of the facultatively anaerobic, Gram-negative bacillus *Proteus mirabilis* Occurring in pediatric and adult populations, the condition typically arises when the physiological acidic barrier and protective cerumen layer of the external ear canal are compromised by moisture exposure, microtrauma, or local irritation Pathophysiologically, bacter...

Pathophysiologically, bacterial proliferation within the cutaneous and subcutaneous tissues of the canal incites intense local inflammation, presenting clinically with otalgia, pruritus, canal edema, erythema, and purulent otorrhea, often accompanied by pronounced tenderness upon manipulation of the tragus or pinna