community-acquired necrotizing pneumonia, an uncommon presentation of a common pathogen: A case report and literature review.

Community-acquired necrotizing pneumonia is a rare but potentially fatal infection, mainly caused by specific pathogens such as , , , , and . is extremely rare as a pathogen for community-acquired necrotizing pneumonia, typically accompanied with bloodstream infection. Here, we report an unusual case of a 60-year-old man with uncontrolled diabetes mellitus and no bloodstream infections, who had severe necrotizing pneumonia leading to massive hemoptysis and death. Clinicians should be aware of this pathogen in respiratory infections, as it requires immediate pathogen detection and usually aggressive antibiotic treatment.