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<p>Listeria monocytogenes (LM) rhombencephalitis is a rare but severe manifestation of neurolisteriosis, typically reported in immunocompromised or elderly patients and often associated with high morbidity and mortality. We describe a 66-year-old immunocompetent man who presented initially with peripheral facial paralysis, an uncommon early manifestation reflecting cranial neuritis, before rapidly developing brainstem dysfunction, respiratory failure, and multiple abscesses. Diagnosis was confirmed by cerebrospinal fluid (CSF) multiplex polymerase chain reaction (PCR) and blood cultures, and despite targeted antimicrobial therapy the patient developed severe neurological sequelae. This case underscores that cranial neuritis may present as an early clue of neurolisteriosis.</p>

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Bell’s palsy as the initial manifestation of Listeria monocytogenes rhombencephalitis with brainstem abscesses in an immunocompetent adult: a case report

  • 期刊论文

  • 发表日期：

    2026年3月2日

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  • María Camila Castañeda-Gómez,
  • Valeria Ortegón-Ayala,
  • Miguel Romero,
  • Jose Luis Bustos

摘要

Listeria monocytogenes (LM) rhombencephalitis is a rare but severe manifestation of neurolisteriosis, typically reported in immunocompromised or elderly patients and often associated with high morbidity and mortality. We describe a 66-year-old immunocompetent man who presented initially with peripheral facial paralysis, an uncommon early manifestation reflecting cranial neuritis, before rapidly developing brainstem dysfunction, respiratory failure, and multiple abscesses. Diagnosis was confirmed by cerebrospinal fluid (CSF) multiplex polymerase chain reaction (PCR) and blood cultures, and despite targeted antimicrobial therapy the patient developed severe neurological sequelae. This case underscores that cranial neuritis may present as an early clue of neurolisteriosis.