Frontal view of fluoroscopic images during inguinal injection of Lipiodol. At abdominal level there is opacification of lymph vessels with drainage of Lipiodol into the cysterna chyli and thoracic duct (TD). Image of occlusion of the TD on the passage from abdominal to thoracic level. Black arrow: droplets of ethiodized oil at the passage from the inferior caval vein to the TCPC conduit, revealing early lymphovenous shunting. At thoracic level there is drainage of Lipiodol through multiple collaterals to hilar, peribronchial, mediastinal, and axillar dilated lymph vessels. Right mediastinum is more affected than the left.