Divisions
The paraaortic lymph node group is divided into three subgroups: preaortic, retroaortic, and right and left lateral aortic.
- The preaortic group drains the abdominal part of the gastrointestinal tract above the mid-rectum.
- The retroaortic group drains from the lateral and preaortic glands.
- The lateral group drains the iliac lymph nodes, the ovaries, and other pelvic organs. The lateral group nodes are located adjacent to the aorta, anterior to the spine, extending laterally to the edge of the psoas major muscles, and superiorly to the crura of the diaphragm.
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