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Launay's External Carotid Vein.

Mihaela Daniela Manta1, Adelina Maria Jianu1, Mugurel Constantin Rusu2

  • 1Department of Anatomy, Faculty of Medicine, Victor Babeș University of Medicine and Pharmacy, 300041 Timișoara, Romania.

Medicina (Kaunas, Lithuania)
|September 28, 2021
PubMed
Summary
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Launay's external carotid vein (ECV), a rare vessel near the external carotid artery (ECA), was identified in 1.5% of CT angiograms. Understanding its variations is crucial for surgical safety in the retromandibular area.

Area of Science:

  • Anatomy
  • Vascular Anatomy
  • Radiology

Background:

  • Launay's external carotid vein (ECV) is an infrequently documented anatomical structure.
  • It is often found as a satellite vein of the external carotid artery (ECA).

Purpose of the Study:

  • To determine the incidence and anatomical variations of Launay's external carotid vein (ECV).

Main Methods:

  • Analysis of 100 computed tomography (CT) angiograms.
  • Anatomical documentation of identified ECVs.

Main Results:

  • Launay's vein (ECV) was observed in 1.5% of cases (3/200 sides).
  • Observed variations included ECV as a replaced or accessory retromandibular vein (RMV).
  • Associated variations included facial vein (FV) drainage patterns and external jugular vein (EJV) fenestration.
Keywords:
carotid arterydeep temporal veinsextracondylar veinjugular veinmandibleoccipitoauricular trunkparotidretromandibular

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Conclusions:

  • Careful surgical observation for ECV during dissections of the external carotid artery (ECA) is recommended to prevent hemorrhage.
  • Distinguishing extracondylar veins is important during surgical approaches to the mandibular neck.