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Pseudomonas aeruginosa infections of the skin
Abstract:
Otitis externa, green nail syndrome, toe web infections, hot tub folliculitis, superinfections in chronic antibiotic-treated acne and infectious eczematoid dermatitis are examples of mild cutaneous infections due to Pseudomonas aeruginosa. These may occur in otherwise healthy persons. In persons with lowered resistance, more severe infections such as malignant otitis externa, blastomycosis-like pyoderma and necrotizing fasciitis are observed. Ecthyma gangrenosum, the pathognomonic skin sign of Pseudomonas septicemia, occurs in debilitated or terminally ill patients and must be treated immediately.
Insights
Pseudomonas aeruginosa causes mild skin infections like otitis externa in healthy individuals. In immunocompromised patients, it can lead to severe conditions such as necrotizing fasciitis and ecthyma gangrenosum.
Area of Science:
- Dermatology
- Infectious Diseases
- Microbiology
Background:
- Pseudomonas aeruginosa is a common bacterium.
- It can cause a range of skin infections.
Purpose of the Study:
- To describe the spectrum of cutaneous infections caused by Pseudomonas aeruginosa.
- To differentiate between infections in healthy individuals and those with compromised immunity.
Main Methods:
- Literature review of Pseudomonas aeruginosa skin infections.
- Clinical case analysis.
Main Results:
- Mild infections include otitis externa, folliculitis, and toe web infections.
- Severe infections in immunocompromised individuals include malignant otitis externa and necrotizing fasciitis.
- Ecthyma gangrenosum is a sign of Pseudomonas septicemia in critically ill patients.
Conclusions:
- Pseudomonas aeruginosa infections vary in severity based on host immune status.
- Prompt recognition and treatment are crucial, especially for severe manifestations.