Here are the RAO and LAO fluoroscopic images he saw (labeled for your convenience):
|RAO Fluoroscopic Image (click to enlarge)|
|LAO Fluoroscopic Image (click to enlarge)|
Here's the LAO Cineangiogram of the finding that helped us identify the cause:
Here's the RAO image of the same shot:
What is this? What happened next?
PS: If you can't wait, here's a link to a pretty illustration of the anatomy. Note the hepatic drainage to the right atrium is separate from the drainage of the IVC in this anomaly. Here's another link to factoids from the radiology literature regarding this interesting finding.