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Published on: July 21, 2013
A Reversible Lesion of the Corpus Callosum Associated With Bacterial Meningitis
Yasmine Mimouni1, Rim Tazi1, Amal Miqdadi2
1Neurology, Cheikh Khalifa Ibn Zayed Hospital, Mohamed VI University of Health Sciences (UM6SS), Casablanca, MAR.
Abstract:
We report the rare case of a 22-year-old female admitted for headaches, nausea, and an isolated lesion of the splenium of the corpus callosum (SCC) found on brain magnetic resonance imaging (MRI). A lumbar puncture test was performed, and Pseudomonas aeruginosa meningitis was found. Twenty days before the symptoms, she had spinal anesthesia for a cesarean section. As soon as the diagnosis was made, antibiotic therapy was initiated. Nonetheless, no signs or symptoms were related to this lesion, which spontaneously disappeared within one month on the control MRI. Pseudomonas aeruginosa is a gram-negative bacillus and may cause rare and severe meningitis. Therefore, a history of a neurosurgical procedure or spinal anesthesia should be sought in the anamnesis.
Insights
A rare case of Pseudomonas aeruginosa meningitis in a young woman, linked to spinal anesthesia, caused an isolated brain lesion that resolved with antibiotics. This highlights the importance of considering neurosurgical history in meningitis diagnosis.
Area of Science:
- Neurology
- Infectious Diseases
- Radiology
Background:
- Post-procedural meningitis is a rare but serious complication.
- Pseudomonas aeruginosa is an opportunistic gram-negative bacterium that can cause severe infections.
Observation:
- A 22-year-old female presented with headaches and nausea.
- Brain MRI revealed an isolated lesion in the splenium of the corpus callosum (SCC).
- Lumbar puncture confirmed Pseudomonas aeruginosa meningitis.
Findings:
- The patient had undergone spinal anesthesia for a cesarean section 20 days prior.
- Antibiotic therapy was initiated promptly upon diagnosis.
- The SCC lesion resolved spontaneously within one month, as confirmed by follow-up MRI.
Implications:
- This case underscores the potential for Pseudomonas aeruginosa to cause meningitis following neurosurgical procedures or spinal anesthesia.
- Clinicians should inquire about recent invasive procedures in patients presenting with meningitis.
- Early diagnosis and appropriate antibiotic treatment are crucial for favorable outcomes.
Related Concept Videos
Bacterial Meningitis
Viral Meningitis
Bacterial Meningitis I: Introduction
Bacterial Meningitis II: Pathophysiology
Encephalitis l: Introduction
Brain Abscess l: Introduction

