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Case Report of Necrotizing Fasciitis Associated with Streptococcus pneumoniae
Lei Jiao1, Zain Chagla2, Reham Mohammedsaeed Kaki3
1Medical Microbiology Postgraduate Training Program, Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada L8S 4L8.
Abstract:
Necrotizing fasciitis, caused by Streptococcus pneumoniae, is an extremely rare and life-threatening bacterial soft tissue infection. We report a case of early necrotizing fasciitis associated with Streptococcus pneumoniae infection in a 26-year-old man who was immunocompromised with mixed connective tissue disease. The patient presented with acute, painful, erythematous, and edematous skin lesions of his right lower back, which rapidly progressed to the right knee. The patient underwent surgical exploration, and a diagnosis of necrotizing fasciitis was confirmed by pathological evidence of necrosis of the fascia and neutrophil infiltration in tissue biopsies. Cultures of fascial tissue biopsies and blood samples were positive for Streptococcus pneumoniae. To our knowledge, this is the first report of necrotizing fasciitis resulting from Streptococcus pneumoniae diagnosed at early phase; the patient recovered well without surgical debridement.
Insights
This case report details an extremely rare instance of early necrotizing fasciitis caused by Streptococcus pneumoniae in an immunocompromised patient. Prompt diagnosis allowed for successful treatment without extensive surgical intervention.
Area of Science:
- Infectious Diseases
- Bacteriology
- Dermatology
Background:
- Necrotizing fasciitis is a severe soft tissue infection, typically caused by Group A Streptococcus.
- Streptococcus pneumoniae is a common pathogen, but rarely associated with necrotizing fasciitis.
- Immunocompromised individuals with connective tissue diseases are at higher risk for severe infections.
Purpose of the Study:
- To report the first known case of early-phase necrotizing fasciitis caused by Streptococcus pneumoniae.
- To highlight the successful management of this rare condition without surgical debridement.
- To emphasize the importance of considering unusual pathogens in immunocompromised patients.
Main Methods:
- Case report of a 26-year-old immunocompromised male with mixed connective tissue disease.
- Clinical presentation of rapidly progressing erythematous and edematous skin lesions.
- Diagnostic confirmation through pathological examination of tissue biopsies and positive bacterial cultures (Streptococcus pneumoniae) from fascial and blood samples.
Main Results:
- Diagnosis of necrotizing fasciitis confirmed by fascia necrosis and neutrophil infiltration.
- Isolation of Streptococcus pneumoniae from fascial tissue and blood cultures.
- Successful recovery of the patient without the need for surgical debridement due to early diagnosis and treatment.
Conclusions:
- Streptococcus pneumoniae can cause early-phase necrotizing fasciitis, even in immunocompromised patients.
- Early diagnosis and appropriate management can lead to favorable outcomes, potentially avoiding extensive surgery.
- This case expands the spectrum of pathogens associated with necrotizing fasciitis and underscores the need for vigilant diagnosis in at-risk populations.
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