PMC4756163_01
Left inferior vena cava (black arrows).
CRIRA2016-1270856.001.jpg
PMC4756163_01_CRIRA2016-1270856.001.jpg
fig1
This left paramedian IVC is of normal calibre and crosses the middle line at the level of the celiac trunk, behind the aorta (Figure 1).
(a) Left IVC (black arrow) crosses the middle line behind the aorta (star). (b) Infrahepatic IVC drains into the Azygos vein (black straight arrow) that enters the thorax together with the aorta (star). Suprahepatic IVC (black curved arrow) is formed only from the hepatic veins and drains as usual into the right atrium. (c) Right renal vein (white arrowhead) crosses the middle line behind the aorta (star) to join the left IVC (black arrow). (d) Infrarenal IVC (black arrow) on the left side of the aorta (star). Large ovarian veins (white arrows) on both sides. Proximally duplicated left ureter (black arrowhead).
CRIRA2016-1270856.002.jpg
PMC4756163_01_CRIRA2016-1270856.002.jpg
fig2
Finally, a partial duplication of the left ureter is noted (Figure 2).