PA Anatomy: Abd: Case 3

overview
m2
CNspine
chestneck item6 pelvis1 limbs1 brain1
case1 case2 case3 case4
PVthromblabposter

red-SMA

green-clot in SMV and portal vein

aqua-portal vein

How can you tell that the red structure is not the aorta, and the green structure is not the IVC?

item4
item3
item6 case3