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Diagnostic dilemma in coinfection
S Gouthaman1, M Mathew, U Sekhar
1Department of Medicine, Sri Ramachandra Medical College and Research Institute, Deemed University, Porur, Chennai.
The Journal of the Association of Physicians of India
|February 19, 2002
Summary
A rare case of community-acquired methicillin-resistant Staphylococcus aureus (MRSA) peritonsillar abscess complicated by Salmonella typhi and Entamoeba histolytica coinfections presented diagnostic challenges. This highlights the importance of thorough investigation in complex infections.
Area of Science:
- Infectious Diseases
- Microbiology
- Clinical Medicine
Background:
- Peritonsillar abscesses are typically bacterial infections.
- Community-acquired methicillin-resistant Staphylococcus aureus (MRSA) is an emerging pathogen in various infections.
- Co-infections with enteric pathogens can complicate clinical presentations.
Observation:
- A 15-year-old girl presented with peritonsillar abscess, high fever, diarrhea, and septic shock.
- Initial diagnostic tests were inconclusive.
- Bone marrow culture confirmed Salmonella typhi, and stool examination revealed Entamoeba histolytica cysts.
Findings:
- The peritonsillar abscess was caused by community-acquired MRSA.
- The patient had concurrent Salmonella typhi and Entamoeba histolytica infections.
- The patient had no evidence of immunosuppression or HIV.
Implications:
- This case underscores the diagnostic complexity of co-infections in patients with severe bacterial infections.
- It highlights the need for broad microbiological investigations beyond initial assessments.
- Recognizing MRSA as a cause of peritonsillar abscess is crucial for appropriate treatment.