The thoracic duct


Origin

  • Cisterna chyli in the abdomen

Course and relations

  • Traverses diaphragm with aorta at T12
  • Runs between thoracic aorta and esophagus
  • Crosses from right to left at sternal angle

Tributaries

  • Posterior mediastinal nodes
  • Small intercostals nodes
  • Left bronchomediastinal trunk
  • Left subclavian trunk
  • Left jugular trunk

Territory

  • All structures below thoracic diaphragm
  • Structures on left side of body above thoracic diaphragm

Termination

  • Junction of internal jugular and sub clavian veins


   

Posterior Mediastinum and posterior chest wall