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Recurrent Pseudomonas folliculitis
R M Trüeb1, M Gloor, B Wüthrich
1Department of Dermatology, University Hospital of Zürich, Switzerland.
Abstract:
Pseudomonas aeruginosa has attracted the attention of the dermatologic literature through repeatedly reported outbreaks of folliculitis occurring in small epidemics related to contaminated whirlpools, hot tubs, and swimming pools. In contrast, sporadic cases without these recreational exposures may present a diagnostic challenge. Two sisters, age 8 and 4 years, had sporadic Pseudomonas folliculitis. It is important to recognize the organism as the cause of this recurrent, papulopustular, follicular eruption on the trunk and gluteal regions, also called nonrecreational Pseudomonas folliculitis, to avoid misdiagnosis and mismanagment. Inadvertent therapy with steroids may result in rapid spread of the lesions. Unless a meticulous investigation of contaminant sources in the environment leads to the detection of the vehicle of infection, the dermatitis tends to recur and become chronic.
Insights
Sporadic Pseudomonas folliculitis, a recurrent skin rash, can be challenging to diagnose without recreational water exposure. Early recognition of Pseudomonas aeruginosa is crucial to prevent misdiagnosis and improper steroid treatment.
Area of Science:
- Dermatology
- Microbiology
Background:
- Pseudomonas aeruginosa is a known cause of folliculitis outbreaks linked to contaminated recreational water.
- Sporadic cases of Pseudomonas folliculitis, particularly in children, can present diagnostic challenges.
- This condition is characterized by a recurrent, papulopustular, follicular eruption.
Observation:
- Two pediatric patients (sisters, aged 8 and 4 years) presented with sporadic Pseudomonas folliculitis.
- These cases lacked the typical recreational water exposure history.
Findings:
- The study highlights non-recreational Pseudomonas folliculitis as a distinct clinical entity.
- Prompt identification of Pseudomonas aeruginosa is essential for accurate diagnosis and management.
- Mismanagement, such as inadvertent steroid therapy, can exacerbate the condition.
Implications:
- Recognizing non-recreational Pseudomonas folliculitis prevents misdiagnosis and inappropriate treatment.
- Environmental investigation is key to identifying infection sources and preventing recurrence.
- Chronic or recurrent cases necessitate a thorough search for environmental contamination.