A dilated sac at the lower end of the thoracic duct into which lymph from the intestinal trunk and two lumbar lymphatic trunks flow.
Comment:
[taxon-note] "In dogs, it is located to the left and often ventral to the aorta; in cats it is left and dorsal; in guinea pigs it runs to the left and drains into the left innominate vein"
Synonyms:
exact_synonym:
Atypical confluence of lymph trunks; Cistern of Pecquet; cisterna chyli