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Updated: Jul 12, 2026

Listeria monocytogenes Infection of the Brain
Published on: October 2, 2018
Simultaneous supratentorial and brainstem abscesses due to Listeria monocytogenes
J P Soares-Fernandes1, P Beleza, J J Cerqueira
1Department of Neuroradiology, Hospital de S.-Marcos, Braga, Portugal. jsf@bragatel.pt
Abstract:
Multiple supratentorial abscesses caused by Listeria monocytogenes are rare. We report the simultaneous occurrence of multiple supratentorial and brainstem abscesses due to Listeria, in a patient under corticotherapy for an exacerbation of ulcerative colitis. MR imaging features before and after successful conservative treatments are depicted. In immunocompromised patients with supratentorial listerial abscesses, the coexistence of brainstem abscedation is exceptional. Despite high mortality associated with listerial abscesses, this case illustrates the possibility of a good clinical outcome, if the appropriate antibiotic regimen is instituted and the immunosuppressant agent is discontinued.
Insights
Multiple brain abscesses caused by Listeria monocytogenes are rare, especially when occurring simultaneously in the supratentorial and brainstem regions. This case highlights a good clinical outcome with prompt antibiotic treatment and immunosuppression withdrawal.
Area of Science:
- Neurology
- Infectious Diseases
- Radiology
Background:
- Listeria monocytogenes is a pathogen that can cause serious central nervous system infections, including brain abscesses.
- Multiple supratentorial abscesses are uncommon, and their simultaneous occurrence with brainstem abscesses is exceptionally rare.
- Corticosteroid therapy for conditions like ulcerative colitis can increase the risk of opportunistic infections, including listeriosis.
Observation:
- A patient undergoing corticotherapy for ulcerative colitis presented with multiple supratentorial and brainstem abscesses.
- Magnetic Resonance (MR) imaging was used to visualize the abscesses before and after treatment.
- The patient's immunocompromised state was a significant factor in the development of these abscesses.
Findings:
- The case demonstrated the simultaneous occurrence of multiple supratentorial and brainstem abscesses caused by Listeria monocytogenes.
- MR imaging revealed the extent and location of the abscesses.
- Successful conservative treatment was achieved through appropriate antibiotic therapy and discontinuation of immunosuppressant medication.
Implications:
- This case underscores the importance of considering Listeria monocytogenes in immunocompromised patients with multiple brain abscesses, even in unusual locations.
- Prompt diagnosis and appropriate management, including targeted antibiotics and reversal of immunosuppression, can lead to favorable clinical outcomes despite the high mortality associated with listerial abscesses.
- The findings highlight the diagnostic utility of MR imaging in evaluating brain abscesses and their response to treatment.
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