이화의대지

Neisseria cinerea is an oropharyngeal normal flora known as a non-pathogenic gram-negative diplococcus. Encephalo-meningitis related to N. cinerea is very rare. A 15-year-old healthy male visited emergency room for altered mentality with fever, headache, and vomiting. Physical examination showed abdominal tenderness and neck stiffness but there was no skin rash. Cerebrospinal fluid (CSF) examination revealed opening pressure of 210 mmH2O, red blood cell 200/mm3, white blood cell 8,320/mm3, neutrophil 84%, glucose 34 mg/dL, suggesting acute bacterial meningitis. Empirical antibiotics were administered and N. cinerea was identified in CSF culture. The patient showed complete recovery 10 days after administration of ceftriaxone. We report this case as the first N. cinerea meningitis in Korea.