The retroaortic lymph nodes (or postaortic lymph nodes) are placed below the cisterna chyli, on the bodies of the third and fourth lumbar vertebrae.
They receive lymphatic trunks from the lateral and preaortic glands, while their efferents end in the cisterna chyli.
This article incorporates text in the public domain from page 705 of the 20th edition of Gray's Anatomy (1918)
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