This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Stomach and aerial supply of abdomen, Subject name: Anatomy
Veins draining into poal vein are all except: 
Select and explain. 
A. Renal vein, B. Para umbilical vein, C. Right gastric vein, D. Cystic vein
A: Renal vein
Answer: A: Renal vein 
Explanation: Tributaries of Poal vein: Mnemonic: Paraumbilical veins. Right gastric vein. Splenic vein. Superior mesenteric vein. Superior pancreatico-duodenal vein. Left gastric vein.