• Jay Menaker, Ian Bebvon K Martin, and Jon Mark Hirshon.
• Division of Emergency Medicine, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland 21201-1734, USA.
• J Emerg Med. 2005 Jul 1; 29 (1): 37-41.

AbstractThe diagnosis of bacterial meningitis is rarely a difficult diagnostic dilemma when a patient presents with fever, headache, neck stiffness, and altered mental status. Unfortunately for the practicing clinician, patients are rarely that straightforward. Patients who are elderly, very young, or immuno-compromised often present with subtle findings, making the correct diagnosis a challenge. In addition, patients being treated with antibiotics may be misleading in their clinical presentation, leading to a missed diagnosis of meningitis. Only when one considers the diagnosis or obtains a sample of cerebrospinal fluid is the correct diagnosis made. Although the clinical scenario may suggest meningitis, it is the cerebrospinal fluid white blood cell count that establishes the definitive diagnosis. Despite the advent of systemic antibiotics over 50 years ago, bacterial meningitis continues to cause considerable morbidity and mortality worldwide. The following case report details a woman diagnosed with Streptococcus pneumoniae meningitis with an extremely high cerebrospinal white blood cell count. Although this is typically thought to be caused by abscesses or malignancy, meningitis alone may cause such an elevation. In addition, a brief review of the current epidemiology and treatment regimens for meningitis is discussed.

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