[Bartonella quintana meningoencephalitis in an immunocompetent: rare case]. / Méningo-encéphalite à Bartonella quintana chez un sujet immunocompétent : une observation rare.

INTRODUCTION: Bartonella quintana (Bq) is responsible of various clinical pictures. Neuromeningeal complications are rarely reported. CASE: A 20-year-old woman was admitted for fever, headache lasting for 5 days. On admission, she was febrile at 39.3°C and had a stiff neck. Symptoms, contact with animals, biological tests and lumbar puncture (PL) rendered viral meningitis a likely diagnosis. She had received symptomatic treatment and the outcome was favorable. Three days later, the patient had headache, agitation and confusion with fever. The PL noted 130/mm(3) whites, 90% lymphocytes. The albuminorachie was 0.98 g/L, glucorachie was normal. The patient was treated with 400 mg of ofloxacine/day, seven days. Serologic tests for B. quintana were reactive. The outcome was favorable. CONCLUSION: B. quintana infection should be considered in neurological symptoms of unknown etiology.