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Archivos de Medicina de Urgencia de México

2026, Number 1

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Arch Med Urg Mex 2026; 18 (1)

Meningitis secondary to Listeria monocytogenes, pathophysiology, clinical evaluation and case report

Mendez de Jesus IA, Sanabria-Cordero D, Trejo-Rosas S, Olivera-Espinoza N, Bravo-Marín OJ, Rodas-Nuila JR

Language: Spanish
References: 20
Page: 138-146
PDF size: 748.85 Kb.


ABSTRACT

Listeria monocytogenes is a Gram-positive, intracellular, aerobic and facultative anaerobic bacterium. Although infections are uncommon, it has high rates of hospitalization and mortality. Due to its significant morbidity and mortality in at-risk populations, it is considered a public health concern. According to the MONALISA study, the most common manifestations are meningitis and meningoencephalitis in susceptible patients: pregnant women, the elderly, and immunocompromised individuals.
We present the clinical case of a male patient who developed meningitis secondary to Listeria monocytogenes infection. He initially presented with nonspecific symptoms: headache, fever, and decreased muscle strength in the lower extremities. A cranial CT scan revealed subarachnoid hemorrhage in the frontal sulcus. After an unfavorable clinical course and subsequent onset of focal neurological deficits, he was admitted to a private hospital. Based on his initial progression, a lumbar puncture and specific tests, including FilmArray, were performed, confirming infection with Listeria monocytogenes.
This case report analyzes the pathophysiology, diagnosis, and treatment of listeriosis.


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