Case report identifies Pseudomonas aeruginosa as a rare cause of cervical lymphadenitis in an 11-year-old, suggesting metagenomic sequencing as a diagnostic tool.
Pediatric cervical lymphadenitis is usually caused by Staphylococcus aureus and Streptococcus pyogenes . Cases resulting from Gram-negative bacteria are rare. Herein, we report the case of an 11-year-old boy who developed cervical lymphadenitis. He was diagnosed with a Pseudomonas aeruginosa infection through metagenomics next-generation sequencing of blood and biopsy. After treatment with meropenem, the patient’s condition improved and he was discharged. Lymphadenitis may be caused by Gram-negative opportunistic pathogens. Metagenomic next-generation sequencing can help identify the underlying cause.
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Gao et al. (2026) studied this question.
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