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  • Title: An unilateral double fenestration of the right external jugular vein: a rare variant.
    Author: Dhivyaashree R, Rajaram N, Banu J, Verma S, Suma HY.
    Journal: Surg Radiol Anat; 2024 Nov; 46(11):1807-1810. PubMed ID: 39212708.
    Abstract:
    OBJECTIVES: This report presents a rare anatomical variation, double fenestration of the External jugular vein on the right side. MATERIALS AND METHODS: During the routine dissection of a male cadaver aged 60 years, we observed a unilateral large double fenestration of the External jugular vein on the right side. RESULTS: After its formation from the posterior division of the retromandibular and posterior auricular veins, External jugular vein descended in the posterior triangle of neck. Here, it divided into medial, intermediate, and lateral veins that united again before draining into the subclavian vein. Lateral vein was the largest (7.2 cm) and intermediate and medial veins were measuring 6.4 cm each. Two large fenestrations, measuring 5.8 cm each, arranged like a "double bubble" were seen in the External jugular vein extending from fourth to sixth cervical (C4 to C6) vertebrae. The medial branch of supraclavicular nerve was seen passing superficial to the distal part of External jugular vein. On the left side, the course of External jugular vein showed a standard pattern. CONCLUSION: Surgeons must be acquainted with the varied anatomy of the superficial neck veins to prevent major bleeding during operative procedures, including carotid endarterectomy, flap operations, & central venous catheterisation.
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