Recognizing Cutibacterium acnes as a cause of infectious pericarditis: A case report and review of literature

Cutibacterium acnes is an anaerobic bacterium commonly thought of as a culture contaminant rather than a pathogen. We present a case of Cutibacterium acnes pericarditis in a 22-year-old immunocompetent woman managed with surgical pericardial window and a 4-week course of penicillin G and review related literature on Cutibacterium acnes pericarditis. •Cutibacterium acnes is a rare etiology of purulent pericarditis.•Improving anaerobe identification methods can identify anaerobes as pathogens.•Penicillin G is a treatment option for Cutibacterium acne pericarditis.