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Legionella pneumophila Outer Membrane Vesicles: Isolation and Analysis of Their Pro-inflammatory Potential on Macrophages

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Legionella maceachernii soft tissue infection.

Cheng E Chee¹, Larry M Baddour

¹Department of Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA. chee.chengean@mayo.edu

The American Journal of the Medical Sciences

|November 16, 2007

Summary

This case report details the first instance of soft tissue infection caused by Legionella maceachernii. This rare Legionella species typically causes pneumonia in immunocompromised individuals.

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Area of Science:

Infectious Diseases
Microbiology
Clinical Case Reports

Background:

Legionella species are known bacterial pathogens, primarily causing pneumonia.
Soft tissue infections are an uncommon manifestation of Legionella, with limited documented cases.
Legionella maceachernii infections are exceptionally rare, with only five previous reports, all involving pneumonia.

Observation:

A patient presented with a soft tissue infection.
Diagnostic investigations identified Legionella maceachernii as the causative agent.
This presentation is highly unusual for Legionella maceachernii.

Findings:

This report documents the first known case of soft tissue infection attributed to Legionella maceachernii.
The findings expand the spectrum of clinical presentations associated with Legionella maceachernii.
This case highlights the potential for unusual presentations of Legionella infections.

Implications:

Clinicians should consider Legionella species, including L. maceachernii, in the differential diagnosis of soft tissue infections, especially in certain patient populations.
This case underscores the importance of comprehensive microbiological investigations for atypical infections.
Further research may be warranted to understand the pathogenesis and epidemiology of Legionella soft tissue infections.