This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
Treatment of choice for extrahepatic poal thrombosis 
Select and explain. 
A. Mesocaval shunt, B. Poocaval shunt, C. Mesorenal shunt, D. Splenorenal shunt
A: Mesocaval shunt
Answer: A: Mesocaval shunt 
Explanation: Since obstruction is in the poal vein, to bypass the obstruction the shunt should be preferably REX shunt (mesenteric-left poal shunt) Splenorenal shunt is also done in EHPVO but in 50% of patients of EPHVO, splenic vein is thrombosed, not available for splenorenal shunt