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Trigeminal artery anatomical aspects.

Ionuț Bulbuc1, Dan Marcel Iliescu2, Constantin Dina2

  • 1Ovidius" University From Constanţa, Constanța, Romania. bulbuc_i@yahoo.com.

Surgical and Radiologic Anatomy : SRA
|January 4, 2025
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Summary
This summary is machine-generated.

The trigeminal artery, a rare embryonic remnant, can cause neurological issues. This study presents three cases, highlighting its anatomical details and associated vascular anomalies.

Keywords:
Anatomic aspectsTrigeminal artery

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Area of Science:

  • Neuroanatomy
  • Vascular Anatomy
  • Embryology

Background:

  • The trigeminal artery is a rare anatomical variant.
  • It represents an embryonic vestige of the anastomosis between the internal carotid artery and the posterior circulatory system.
  • It can be asymptomatic or cause significant clinical manifestations due to insufficient flow or neurovascular conflicts.

Purpose of the Study:

  • To present an anatomical study of three cases of the trigeminal artery.
  • To describe the clinical significance and anatomical variations of the trigeminal artery.

Main Methods:

  • Three cases of trigeminal artery were identified.
  • Magnetic resonance angiography (MRA) was utilized for detection.
  • A total of 860 MRAs were reviewed, with trigeminal arteries found in 0.35% of cases.

Main Results:

  • The trigeminal arteries originated from both right and left internal carotid arteries.
  • Artery caliber ranged from 2.7 to 5.1 mm, with lengths between 26 and 32 mm.
  • Associated vascular anomalies included hypoplasia of the basilar artery, posterior cerebral artery, and contralateral vertebral artery, as well as agenesis of the posterior communicating artery.

Conclusions:

  • The trigeminal artery is a rare but clinically significant anatomical variant.
  • It is an important vessel in the posterior cerebral fossa.
  • It must be considered during neurosurgical interventions.