Infection Leads to Lung Abscess: A Case Report and Literature Review.

Background: is one of the anaerobic bacteria in the mouth.

Case Presentation: We report the case of a 73-year-old man admitted for lung abscess caused by with unique manifestations under electronic bronchoscopy, and the pathogen is first reported to be confirmed by metagenomic next-generation sequencing (mNGS) through testing bronchoalveolar lavage fluid.

Conclusion: Sometimes, can cause infection outside the mouth such as lung abscess.