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Sylvius aqueduct septum.

T Coolen1, L Médart2, M Tebache2

  • 1Department of Radiology, University of Liège, Liège, Belgium. tim.coolen@ulb.ac.be

JBR-BTR : Organe De La Societe Royale Belge De Radiologie (SRBR) = Orgaan Van De Koninklijke Belgische Vereniging Voor Radiologie (KBVR)
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PubMed
Summary
This summary is machine-generated.

Adults can develop chronic hydrocephalus due to a rare aqueductal stenosis. This case highlights a membranous septum of the aqueduct of Sylvius causing adult-onset hydrocephalus.

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Area of Science:

  • Neurology
  • Neurosurgery
  • Medical Imaging

Background:

  • Hydrocephalus, characterized by excess cerebrospinal fluid, typically presents in infancy but can occur in adulthood.
  • Acquired causes of adult hydrocephalus are diverse, often involving structural abnormalities or secondary conditions.
  • The aqueduct of Sylvius is a critical narrow passage connecting the third and fourth ventricles, susceptible to obstruction.

Observation:

  • A patient presented with acute decompensation, leading to the diagnosis of chronic hydrocephalus in adulthood.
  • Multimodal imaging, including MRI, was utilized to investigate the underlying cause of the cerebrospinal fluid accumulation.
  • The imaging revealed a unique anatomical obstruction within the cerebral aqueduct.

Findings:

  • The cause of hydrocephalus was identified as a membranous septum obstructing the aqueduct of Sylvius.
  • This specific type of aqueductal stenosis is infrequently reported in adult hydrocephalus literature.
  • The membranous septum likely led to chronic cerebrospinal fluid pressure buildup.

Implications:

  • This case expands the known etiologies of adult-onset hydrocephalus.
  • It underscores the importance of comprehensive neuroimaging in diagnosing adult hydrocephalus.
  • Further investigation into rare obstructive lesions of the aqueduct of Sylvius is warranted.