This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
In poal hypeension the sites of poosytemic anastomosis includes all except 
Select and explain. 
A. Lower end of esophagus, B. Around umbilicus, C. Lower third of rectum and anal canal, D. Superior and inferior pancreatic vessels
D: Superior and inferior pancreatic vessels
Answer: D: Superior and inferior pancreatic vessels 
Explanation: A poacaval anastomosis is a specific type of anastomosis that occurs between the veins of poal circulation and those of systemic circulation. The inferior end of the esophagus and the inferior pa of the rectum are some of the most impoant sites of poal systemic anastomosis.In poal hypeension, as in the case of cirrhosis of liver, the anastomoses become congested and form venous dilatations