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<p>Extra-pulmonary infections caused by <i>Legionella maceachernii</i> are exceptionally rare, particularly in immunocompetent children. This case report describes a young child with a submandibular infection caused by <i>L. maceachernii</i>, who achieved complete recovery following combination therapy with azithromycin and sulfamethoxazole-trimethoprim (SMZ-TMP). By detailing the diagnostic and therapeutic course in this case, we aim to raise clinical awareness of such soft tissue infections in pediatric patients caused by atypical pathogens, thereby reducing the risk of misdiagnosis and optimizing patient outcomes.</p>

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Submandibular infection in a healthy child caused by Legionella maceachernii

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年11月28日

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  • Xiaoyun Ye,
  • Ji-An Li,
  • Shifu Wang,
  • Shengwei Luan,
  • Jie Zheng,
  • Shichun Lv,
  • Guoqing Zheng,
  • Wenwen Jiang,
  • Xinrui Huang,
  • Jingjing Xu,
  • Lingdong Zhu,
  • Beibei Niu

摘要

Extra-pulmonary infections caused by Legionella maceachernii are exceptionally rare, particularly in immunocompetent children. This case report describes a young child with a submandibular infection caused by L. maceachernii, who achieved complete recovery following combination therapy with azithromycin and sulfamethoxazole-trimethoprim (SMZ-TMP). By detailing the diagnostic and therapeutic course in this case, we aim to raise clinical awareness of such soft tissue infections in pediatric patients caused by atypical pathogens, thereby reducing the risk of misdiagnosis and optimizing patient outcomes.