Streptococcus salivarius pneumonia-associated pneumomediastinum: a case report and literature review

  • 0Department of Respiratory and Critical Care Medicine,Bishan Hospital of Chongqing Medical University, Bishan Hospital of Chongqing, Chongqing, China.

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Summary

This summary is machine-generated.

This case study highlights a rare instance of Streptococcus salivarius pneumonia, a condition previously unreported, complicated by pneumomediastinum. Early detection via metagenomic sequencing and prompt treatment led to patient recovery.

Area Of Science

  • Medical Case Report
  • Infectious Diseases
  • Pulmonology

Background

  • Streptococcus salivarius, an opportunistic pathogen, has not been previously associated with pneumonia.
  • Pneumomediastinum, the presence of air in the mediastinum, is rarely a complication of pneumonia, typically resulting from tracheal or esophageal injury.

Observation

  • A 36-year-old male presented with persistent cough, sputum, and sore throat.
  • Chest CT revealed pneumomediastinum and obstructive atelectasis in the left lower lobe.
  • Bronchoalveolar lavage identified Streptococcus salivarius via metagenomic next-generation sequencing (mNGS) and conventional methods.

Findings

  • Successful treatment of Streptococcus salivarius pneumonia with intravenous amoxicillin-clavulanate.
  • Resolution of pneumomediastinum and atelectasis following antibiotic therapy.
  • mNGS proved effective for identifying rare bacterial pathogens in pneumonia.

Implications

  • Clinicians should consider rare pathogens like Streptococcus salivarius in pneumonia cases.
  • Vigilance for uncommon complications such as pneumomediastinum is crucial in pneumonia management.
  • Prompt bronchoscopy and mNGS of bronchoalveolar lavage fluid can improve detection rates for rare pathogens.

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