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Related Experiment Videos

Endoscopic anatomic features of the triangular recess.

Pierluigi Longatti1, Andrea Martinuzzi, Alessandro Fiorindi

  • 1Department of Neurosciences, Neurosurgical Unit, Treviso Hospital, Treviso, Italy.

Neurosurgery
|May 24, 2003
PubMed
Summary
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The triangular recess (TR) of the third ventricle, rarely seen normally, becomes visible during endoscopic procedures in hydrocephalus cases. Understanding its features aids neurosurgeons in endoscopic neuronavigation.

Area of Science:

  • Neurosurgery
  • Neuroanatomy
  • Medical Imaging

Background:

  • The triangular recess (TR) is an anatomical feature of the third ventricle.
  • Its visibility is limited under normal physiological conditions.
  • Pathological conditions can alter the third ventricle's anatomy.

Purpose of the Study:

  • To detail the morphological and topographic characteristics of the triangular recess (TR).
  • To identify pathological conditions enabling TR observation during ventricular endoscopic neuronavigation.
  • To enhance neurosurgical understanding of the TR in specific clinical scenarios.

Main Methods:

  • Systematic review of medical records and operative videos.
  • Analysis of 145 patients undergoing endoscopic third ventriculostomy.

Related Experiment Videos

  • Evaluation of TR visibility and adjacent structures in identified cases.

    • Main Results:

    • The TR was observed in five hydrocephalus cases with distinct underlying pathologies.
    • Morphological and topographic features of the TR varied across cases.
    • The TR became apparent due to hydrocephalus-induced structural changes.

    Conclusions:

    • The triangular recess (TR) is a notable third ventricle structure, often obscured.
    • Hydrocephalus can lead to TR visibility during endoscopic procedures.
    • Awareness of the TR and its presentation in hydrocephalus is crucial for neurosurgeons using neuroendoscopy.