cisterna/ampulla/receptaculum chyli, chyle/Pecquet cistern, Pecquet reservoir, cholocyst

A dilated sac at the end of the thoracic duct into which the intestinal trunk & two lumbar lymphatic trunks open. - occurs inconsistently - if present, located posterior to the aorta on the anterior aspect of the bodies of the 1st & 2nd lumbar vertebrae

References

Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999.