Pneumonia with parapneumonic effusion due to Fusobacterium necrophorum: a case report
10.5847/wjem.j.1920-8642.2025.077
- Author:
Xiaojun Dong
1
Author Information
1. Infection Department, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
- Publication Type:Case Reports
- From:
World Journal of Emergency Medicine
2025;16(5):516-518
- CountryChina
- Language:English
-
Abstract:
Fusobacterium is a genus of obligate anaerobic gram-negative bacilli that usually colonize the oropharynx, gastrointestinal tract, upper respiratory tract, and vaginal mucosa of humans as a part of the normal flora.[1,2] Infections may occur once host defense mechanisms are altered and mucosal barriers are disrupted.[3] The clinical spectrum is wide and includes pharyngitis, sinusitis, abscess formation, puerperal infections, bacteremia, and septic shock. Within this genus, two species are most commonly isolated: Fusobacterium nucleatum and Fusobacterium necrophorum (F. necrophorum). F. necrophorum is usually associated with Lemierre’s syndrome,[4,5] a type of septic thrombophlebitis of the internal jugular vein.
