A Case Report of Buccal Phlegmon Due to Bacteroides fragilis

Abstract

A 39-year-old woman was reported who recently had buccal phlegmon caused by secondary infection of the 2 radicular cyst with isolated Bacteroides fragilis. She was came to the emergency department because of general fatigue and swelling of face and upper lip. She underwent antibiotic (FOM, CFT) therapy for three days, but this therapy was ineffective. Bacteroides fragilis was isolated as a result of bacteriological examination of dark yellow pus obtained from a closed abscess. Susceptibility of Bacteroides fragilis to 7 antibiotics was tested by bioassay. Susceptible antibiotics were ofloxacin, clindamycin, imipenem, minocycline, and nonsusceptible ones were ampicillin, piperacilin, and lomefloxacine. Surgical drainage, cyst extirpation and tooth extraction was perfomed. It was suggested that the infectious route was endogenous rather than exogenous. Therefore, local proliferation of invading Bacteroides frogilis becomes.
Critical and spreads throughout the body.