Biometric measurements involving the terminal portion of the thoracic duct on left cervical level IV: an anatomic study.
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.
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil.
Andressa Cristina Sposato
AC
Louzada
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil.
Soo Jin
SJ
Lim
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil.
Jaqueline Fabiano
JF
Pallazzo
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil.
Viviane Passarelli Ramin
VP
Silva
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil.
Ruan Vitor Silva
RV
de Oliveira
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil.
Alvaro Masahiro
AM
Yoshio
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil.
Vergilius José Furtado
VJ
de Araújo-Neto
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil.
Ana Kober Nogueira
AK
Leite
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil.
André
A
Silveira
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil.
Cesar
C
Simões
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil.
Lenine Garcia
LG
Brandão
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil. lmatos@amcham.com.br.
Leandro Luongo de
LL
Matos
Head and Neck Surgery Department, Faculty of Medicine, University of São Paulo, Av. Dr. Enéas de Carvalho Aguiar, 255, 8th floor, room 8174, São Paulo, SP, ZIP: 05403-000, Brazil.
Claudio Roberto
CR
Cernea
D063405:Anatomic Variation; D001699:Biometry / Q000379:methods*; D016121:Brachiocephalic Veins / Q000033:anatomy & histology; D002102:Cadaver; D005260:Female; D006801:Humans; D007601:Jugular Veins / Q000033:anatomy & histology; D008297:Male; D009333:Neck / Q000033:anatomy & histology*; D037981:Neck Dissection; D011183:Postoperative Complications / Q000517:prevention & control; D013350:Subclavian Vein / Q000033:anatomy & histology; D013897:Thoracic Duct / Q000033:anatomy & histology*
Anatomic variation; Anatomy; Neck dissection; Surgery; Thoracic duct