Abstract
The external jugular v. (EJV) is increasingly being used for therapeutic procedures and monitoring by clinicians. In view of this clinical relevance, dissection was done on the head and neck regions in 40 adult cadavers of Indian origin to detect variations of the EJV. Though several patterns of tributaries were found, a facial v. (FV) of considerable size was observed coursing obliguely to join the EJV in the neck in four cases (5%). The distance of the junction of the FV and the EJV from the angle of the mandible ranged between 55 and 104 mm. This may represent a persistent communication of the primitive linguofacial v. with the secondarily developing EJV. This anastomotic channel is present for some time in the fetus but later undergoes retrogression. Its persistence in some individuals results in this variation.
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Choudhry, R., Tuli, A. & Choudhry, S. Facial vein terminating in the external jugular vein An embryologic interpretation. Surg Radiol Anat 19, 73–77 (1997). https://doi.org/10.1007/s00276-997-0073-z
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DOI: https://doi.org/10.1007/s00276-997-0073-z