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Streptococcus pneumoniae meningoencephalitis with bilateral basal ganglia necrosis: an unusual complication due to
Jessy Magnus1, Paul M Parizel, Berten Ceulemans
1Department of (Pediatric) Critical Care Medicine, Antwerp University Hospital, University of Antwerp, Belgium.
Abstract:
Streptococcus pneumoniae (S pneumoniae) is a common cause of bacterial meningitis, frequently leading to death or severe neurological impairment. We report an exceptional case of a 4-month-old boy with meningitis caused by S pneumoniae. Computed tomography (CT) and magnetic resonance imaging (MRI) examinations of the brain showed bilateral symmetrical necrosis involving the lentiform and caudate nuclei, as well as the thalamus. T1-weighted MR images showed patchy areas of increased signal intensity, consistent with hemorrhagic transformation of the lesions. Autopsy revealed widespread necrosis of the basal ganglia with clear signs of vasculitis. Severe complications of S pneumoniae meningoencephalitis are known in infants but to our knowledge, such lesions in the basal ganglia have only been reported thrice in adults and never in children.
Insights
This case report details a 4-month-old infant with Streptococcus pneumoniae meningitis, presenting with rare basal ganglia necrosis. This highlights unusual neurological complications in pediatric bacterial meningitis.
Area of Science:
- Neurology
- Pediatrics
- Infectious Diseases
Background:
- Streptococcus pneumoniae is a leading cause of bacterial meningitis in infants.
- Meningitis can result in severe neurological deficits or mortality.
- Infants are particularly vulnerable to severe central nervous system infections.
Observation:
- A 4-month-old boy presented with meningitis caused by Streptococcus pneumoniae.
- Brain imaging revealed bilateral symmetrical necrosis of the lentiform and caudate nuclei, and thalamus.
- MRI showed signs suggestive of hemorrhagic transformation in the affected brain regions.
Findings:
- Autopsy confirmed widespread basal ganglia necrosis and vasculitis.
- This pattern of basal ganglia lesions is exceptionally rare in children with S pneumoniae meningoencephalitis.
- Such findings have been documented only a few times in adults and not previously in pediatric cases.
Implications:
- This case expands the spectrum of known neurological complications of S pneumoniae meningitis in infants.
- It underscores the importance of considering rare but severe brain lesions in pediatric meningitis.
- Further research may elucidate the specific mechanisms leading to basal ganglia vasculitis in this context.
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