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Cisterna chyli

Collecting ducts · detail · L1-L2

The saccular confluence of the two lumbar trunks and the intestinal trunk at L1-L2, lying to the right of the aorta behind the right crus of the diaphragm; it is the beginning of the thoracic duct.

Traced from the start

  1. Testis and ovary
  2. Lower limb, scrotum and perineal skin
  3. Para-aortic (lumbar) nodesSuperficial and deep inguinal nodes
  4. Gut and abdominal viscera
  5. Preaortic nodes (coeliac, superior and inferior mesenteric)
  6. Right and left lumbar trunksIntestinal trunk
  7. Cisterna chyli

Detail

Level
L1-L2
Formed by
Right and left lumbar trunks plus the intestinal trunk
Relations
Right of the abdominal aorta, posterior to the right crus
Frequency
A discrete sac in only about half of people; otherwise a plexus of vessels

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