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Biometric measurements involving the terminal portion of the thoracic duct on left cervical level IV: an anatomic study

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Abstract

To determine the point of entrance of the thoracic duct in the venous system, as well as to evaluate some biometric measurements concerning its terminal portion, we conducted an anatomic study on 25 non-preserved cadavers. The termination of the thoracic duct occurred on the confluence between the left internal jugular vein and the left subclavian vein in 60 % of the individuals. The average results for the biometric measurements were: distance between the end of left internal jugular vein and omohyoid muscle 31.2 ± 2.7 mm; distance between the end of thoracic duct and the left internal jugular vein 0.0 ± 0.0 mm; distance between the end of thoracic duct and the left subclavian vein 3.6 ± 1.0 mm; distance between the end of thoracic duct and the left brachiocephalic vein 10.7 ± 3.1 mm. Moreover, it was identified that the left internal jugular vein length in level IV, measured between its entrance in the left subclavian vein and the omohyoid muscle, was able to predict the termination of the thoracic duct on the junction between the left internal jugular vein and the left subclavian vein (OR = 2.99) with high accuracy (79.3 %). In addition, the left internal jugular vein length at level IV was able to predict the localization of thoracic duct termination. Thus, this finding has practical value in minimizing the risk for a potential chyle leak during or after a left-sided neck dissection.

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Correspondence to Leandro Luongo de Matos.

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The authors have read and approved the final manuscript and do not have actual, potential, or apparent conflict of interest with regard to the manuscript submitted for review, confirm that the manuscript has been submitted solely to Anatomical Science International and is not submitted, in press, or published elsewhere until the editorial board has decided whether to publish the article.

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Louzada, A.C.S., Lim, S.J., Pallazzo, J.F. et al. Biometric measurements involving the terminal portion of the thoracic duct on left cervical level IV: an anatomic study. Anat Sci Int 91, 274–279 (2016). https://doi.org/10.1007/s12565-015-0295-9

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  • DOI: https://doi.org/10.1007/s12565-015-0295-9

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