Figure 2a. Single straight thin tube. (a) Coronal T2-weighted MR image acquired with a HASTE sequence shows a small cisterna chyli as a single straight thin tube (arrow) between the aorta (*) and the right hemidiaphragmatic crus (arrowhead). The thoracic duct is not seen. (b) MIP image, reconstructed by using several coronal sections from the same HASTE sequence, depicts the cisterna (arrow) and one of the lumbar or intestinal afferent trunks (arrowhead).