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Gram-negative bacterial pyomyositis: unique case and review.
F A Sarubbi1, G D Gafford, D R Bishop
1Medical Service, Mountain Home Veterans Administration Medical Center, Johnson City, Tennessee.
Reviews of Infectious Diseases
|September 1, 1989
Summary
Gram-negative bacterial pyomyositis is rare, with Staphylococcus aureus being the most common cause of this skeletal muscle infection. This study presents a unique case of Serratia marcescens pyomyositis in a patient with multiple myeloma.
Area of Science:
- Infectious Diseases
- Microbiology
- Musculoskeletal System
Background:
- Bacterial pyomyositis typically involves gram-positive organisms like Staphylococcus aureus.
- Skeletal muscle infections caused by aerobic gram-negative bacteria are exceptionally rare, even in tropical regions.
Observation:
- A literature review identified only five previously reported gram-negative organisms causing pyomyositis in the United States.
- This report details a unique case of pyomyositis caused by Serratia marcescens.
Findings:
- The patient presented with multiple myeloma, a condition not typically associated with gram-negative pyomyositis.
- Lower leg muscles appear to be a common site for gram-negative pyomyositis.
- Successful clinical outcomes were achieved with surgical drainage and targeted antibiotic treatment.
Implications:
- This case expands the known spectrum of bacteria causing pyomyositis.
- Highlights the importance of considering gram-negative organisms in specific patient populations, such as those with multiple myeloma.
- Emphasizes the effectiveness of prompt surgical and antibiotic intervention for achieving clinical cure in rare pyomyositis cases.