Waad Al Saleemi¹, Amal Al Balushi¹, Ahmed AlAzri², Mustafa Al Shaaibi³, Amina Al-Jardani⁴, Azza Al Rashdi⁴, Khalsa Al Ramadhani⁵, Hala Al Hinai⁶, Nawal Al Kindi^6,

Brain abscess represents one of the most serious complication of head and neck infections. While anaerobic bacteria are frequent isolates from brain abscesses, usually in a mixed culture, Eikenella corrodens is rarely isolated from this site. E. corrodens is a fastidious gram-negative bacterium that normally colonizes the oral cavity and upper respiratory tract. We report a case of a 42-year-old immunocompetent lady with a background of Ebstein cardiac anomaly who presented with parietooccipital brain abscess. She underwent awake surgery under navigation guidance, burr hole drainage of the abscess. Abscess culture revealed growth of E. corrodens in addition to anaerobic bacterial growth of Fusobacterium nucleatum and Parvimonas micra. The patient was successfully treated with a six weeks course of intravenous ceftriaxone and metronidazole which resulted in complete resolution of the abscess.

brain abscess, eikenella corrodens, fusobacterium nucleatum, parvimonas micra, polymicrobial infection, oral flora