Confluent Retropharyngeal, Lateral Pharyngeal, and Peritonsilar MRSA Abscess in an Infant

Area of Science:

• Pediatric Infectious Diseases
• Head and Neck Surgery
• Microbiology

Background:

• Neck abscesses, including retropharyngeal, peritonsilar, and lateral pharyngeal types, are generally well-documented with characteristic clinical presentations and epidemiology.
• These infections typically manifest with severe symptoms, making diagnosis relatively straightforward in most cases.

Observation:

• A rare case of a confluent, mixed retropharyngeal, lateral pharyngeal, and peritonsilar abscess was observed in a 9-month-old female infant.
• The infant presented with unusually mild symptoms, which were not commensurate with the extensive nature of the abscess.

Findings:

• The extensive neck abscess was caused by methicillin-resistant Staphylococcus aureus (MRSA).
• This finding is significant given the atypical presentation and the specific pathogen involved.

Implications:

• This case highlights the importance of considering serious diagnoses even with subtle symptoms in infants.
• The identification of MRSA underscores the need for appropriate antimicrobial stewardship and infection control measures in pediatric populations.
• Further research may be warranted to understand the specific factors contributing to such extensive abscesses with mild initial presentations.