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Group A streptococcal necrotizing fasciitis of the psoas muscle
1Infectious Disease Division, Winthrop-University Hospital, Mineola, NY 11501, USA.
Abstract:
Group A streptococci are common colonizers of the skin and upper respiratory tract. Serious infections of the respiratory tract as well as the skin and soft tissue are common. Highly virulent Group A streptococci are not infrequently the cause of invasive, life-threatening infections. Necrotizing fasciitis is uncommon and rarely the result of Group A streptococci. Necrotizing fasciitis of the psoas from Group A streptococci has been reported as a complication in patients with colon cancer perforation or peritonitis. We report the first case of Group A streptococcal necrotizing fasciitis of the psoas muscle not associated with peritonitis or colon perforation.
Insights
Group A Streptococcus can cause serious infections. This study details the first reported case of Group A streptococcal necrotizing fasciitis in the psoas muscle without peritonitis or colon perforation.
Area of Science:
- Infectious Diseases
- Microbiology
- Surgical Pathology
Background:
- Group A Streptococcus (GAS) commonly colonizes the skin and respiratory tract.
- GAS infections range from mild to severe, including invasive and life-threatening conditions.
- Necrotizing fasciitis is a rare but severe GAS infection, with psoas muscle involvement typically linked to gastrointestinal complications.
Observation:
- This report presents a unique case of necrotizing fasciitis affecting the psoas muscle.
- The infection was caused by Group A Streptococcus.
- Crucially, this case occurred in the absence of peritonitis or colon perforation.
Findings:
- The study identifies a novel presentation of Group A streptococcal necrotizing fasciitis.
- This is the first documented instance of psoas muscle necrotizing fasciitis due to GAS unrelated to intra-abdominal sources.
- The findings highlight the potential for GAS to cause invasive infections in unusual locations.
Implications:
- This case expands the known spectrum of invasive Group A Streptococcus infections.
- It suggests that clinicians should consider GAS as a potential pathogen in unexplained psoas muscle infections, even without typical risk factors.
- Further research may be needed to understand the mechanisms behind this non-peritonitis-associated presentation.