Nosocomial empyema caused by a rare serotype, serotype 4c, of Listeria monocytogenes in a patient with rheumatoid arthritis and chronic kidney disease: A case report and review of the literature

The intracellular pathogen Listeria monocytogenes presents characteristically as meningoencephalitis and bacteremia. Herein, we report an extremely rare case of empyema caused by serotype 4c L. monocytogenes in an immunocompromised patient. This case supports the inclusion of L. monocytogenes infection in the differential diagnosis of empyema in an immunocompromised patient.