The portal vein is formed by the merging of the splenic vein, which brings blood from the spleen, and the superior mesenteric ...

Arterial bypass surgery. If mesenteric artery disease is very advanced, or if blockages develop in an artery that is difficult to reach with a catheter, arterial bypass surgery may be necessary to ...

Caption (A) Compression. Pancreatic cysts compress the splenic vein, increasing venous flow in the gastric veins and forming varices. Other causes of compression include pancreatic NET, lymphoma ...