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Related Experiment Videos

Persistent trigeminal artery: a unique anatomic specimen--analysis and therapeutic implications.

N Suttner1, J Mura, H Tedeschi

  • 1Institute of Neurological Sciences, São Paulo, Brazil.

Neurosurgery
|August 15, 2000
PubMed
Summary
This summary is machine-generated.

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A rare persistent trigeminal artery variation was found in a human specimen. This medial variation of the carotid-basilar anastomosis highlights the existence of diverse anatomical connections.

Area of Science:

  • Neuroanatomy
  • Vascular Anatomy
  • Human Anatomy

Background:

  • Persistent primitive carotid-basilar artery anastomoses are rare vascular variations.
  • The persistent trigeminal artery is the most common type of such anastomosis.
  • These anomalies are typically identified via angiography or at autopsy.

Purpose of the Study:

  • To present a unique medial variation of the persistent trigeminal artery.
  • To discuss the anatomical features of this uncommon carotid-basilar anastomosis.
  • To contribute to the understanding of variations in cerebrovascular anatomy.

Main Methods:

  • Examination of a single, well-preserved adult human anatomical specimen.
  • Injection of the vascular system with red latex for clear visualization.

Related Experiment Videos

  • Detailed anatomical description and discussion of the observed variation.

    • Main Results:

    • A unique medial variation of the persistent trigeminal artery was identified.
    • The artery originated from the medial aspect of the right intracavernous carotid artery.
    • The specimen clearly showed branching into the inferior hypophyseal artery and a dorsal meningeal artery supplying the clivus.

    Conclusions:

    • A novel variation of the persistent trigeminal artery has been described.
    • This finding supports the existence of multiple varieties of carotid-basilar anastomoses.
    • Understanding these variations is crucial for neurovascular diagnostics and surgery.