Meningoencephalitis due to Listeria monocytogenes

Neurolisteriosis presents mainly as meningitis or meningoencephalitis, to a lesser extent rhombencephalitis or brain abscess frequency. It is the leading cause of death among all Bacterial meningitis and is associated with a high rate of neurological disability. For your diagnosis must take into account age and risk factors, mainly over 50 years and with immunosuppression conditions. Diagnostic aids are key to achieving the isolation of Lm, where CSF culture has the best sensitivity. Although studies are lacking demonstrating the superiority of molecular studies, the Film Array-MEP appears to be promising in fast and accurate isolation of the main microorganisms involved in pyogenic meningitis, among these Lm. Brain MRI is the study of choice for the diagnosis of rhombencephalitis. The cornerstone of treatment remains ampicillin, and its association with aminoglycoside could decrease mortality.