Today we review an azygos vein. This vein, which drains the spinal cord via intercostal veins and lumbar veins, enters the superior vena cava at the top, the renal vein in the middle and the ascending lumbar veins at the bottom.
The findings of malformations are
1. valvular problems of fixation, stiffness and fusion
2. Webs & septations running through the ascending component of the vein
3. twists and kinks
Let's have a look at this:
1. on the left contrast media is injected at the tip of the catheter (red arrow). One notes that there is no dye flowing up toward the superior vena cava.
2. on the second image one sees that there is dye above the area of blockage (red arrows). This is flowing past the obstruction through a large feeding branch. (orange curved arrow)
3. On the third image the narrowed segment is quite obvious. For those readers who are not obvious and have real moral character, the red arrow points to the pointed narrowing.
4. Finally, the last image on the right SHOWS NO NARROWING. What could be the explanation?
Tomorrow we will continue this harrowing adventure.
This is Dr Whiplash, i am out to lunch.