Primary nocardial meningitis in systemic lupus erythematosus.

Nocardia is an important but often overlooked opportunistic infection agent in immunocompromised hosts. Nocardiosis is primarily pulmonary; central nervous system involvement, usually in the form of brain abscess, is less common. Primary nocardial meningitis without associated brain abscess and pulmonary lesion is extremely rare and poses a formidable diagnostic challenge. We report on a patient with systemic lupus erythematosus who presented with a clinical picture of chronic meningitis which failed to respond to empirical antibiotic treatment. She deteriorated and succumbed. Post-mortem examination showed nocardial meningitis without associated brain abscesses. Nocardial meningitis should be considered a differential diagnosis of subacute meningitis in immunocompromised hosts.