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Related Concept Videos

Cranial and Spinal Meninges01:19

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The cranial and spinal meninges are complex protective structures surrounding the central nervous system (CNS), consisting of the brain and spinal cord. These meninges consist of the dura mater, the arachnoid mater, and the pia mater. They protect the CNS, provide structural support, and aid in circulating cerebrospinal fluid (CSF).
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Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the...
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Related Experiment Video

Updated: Nov 23, 2025

Accessing the Subdural Space of the Rodent Spinal Cord for Treatment Delivery
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Spinal subdural hygroma.

Bernard Sneyers1, Kristof Ramboer2

  • 1AZ Sint-Lucas Brugge, Sint-Lucaslaan 29, 8310, Bruges, Belgium. bernard.sneyers@student.kuleuven.be.

Acta Neurologica Belgica
|January 4, 2021
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Summary

Spinal subdural hygromas are rare, often linked to trauma or hypotension. Diagnosis relies on MR imaging, with conservative treatment usually effective, though underlying causes need addressing.

Keywords:
Meningeal anatomyMeningeal embryologySpinal hygromaSubdural hygroma

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Area of Science:

  • Neurology
  • Radiology
  • Medical Imaging

Background:

  • Spinal subdural hygroma is an uncommon condition.
  • Its pathophysiology and prevalence remain largely unknown.
  • Often associated with trauma, iatrogenic causes, or intracranial hypotension.

Purpose of the Study:

  • To review current knowledge on spinal subdural hygroma.
  • To cover aspects from embryology to treatment.
  • To highlight diagnostic and therapeutic challenges.

Main Methods:

  • Systematic literature review using sensitive search strategies.
  • Analysis of relevant articles on spinal subdural hygroma.
  • Focus on radiological detection and treatment modalities.

Main Results:

  • Magnetic Resonance (MR) imaging is the gold standard for diagnosis.
  • Conservative treatment is typically successful; surgery is rare.
  • Addressing the underlying cause is crucial for management.

Conclusions:

  • Spinal subdural hygroma is underdiagnosed due to rarity and association with other pathologies.
  • Further research is needed to understand its prevalence and pathophysiology.
  • High-resolution imaging is essential for accurate diagnosis.