Prevotella buccae is a Gram-negative anaerobic rod involved in some human infections. We report the first case of an infected breast cyst in a non-puerperal women due to this pathogen. A 53-year-old woman presented with pain and a cystic lesion in the right breast. Culture of abscess drainage resulted in isolation of P. buccae. High level of resistance to metronidazole was documented. Treatment with drainage and amoxicillin-clavulanate was established, and improvement of this infection was observed.
Keywords: Anaerobe; Antimicrobials; Breast abscess; Drainage; P. buccae.
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