superior mesenteric vein


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su·pe·ri·or mes·en·ter·ic vein

[TA]
begins at the ileum in the right iliac fossa, ascends in the root of the mesentery, and unites behind the pancreas with the splenic vein to form the hepatic portal vein.
Synonym(s): vena mesenterica superior [TA]

superior mesenteric vein

a tributary of the portal vein that drains the blood from the small intestine, the cecum, and the ascending and transverse colons. See also portal vein.

superior mesenteric vein

The vein that accompanies the superior mesenteric artery and drains the small intestine, cecum, ascending colon, and transverse colon. Under the neck of the pancreas, the superior mesenteric vein joins the splenic vein to form the portal vein. Tributaries of the superior mesenteric vein include the jejunal, ileal, ileocolic, right and middle colic, right gastroepiploic, and pancreaticoduodenal veins.
See also: vein
References in periodicals archive ?
This revealed superior mesenteric vein thrombosis as well as a mildly atrophic pancreas with loculated fluid collection, representing early pseudocyst formation.
Among the venous, thrombosis of the splenic vein is frequent & less commonly portal & superior mesenteric vein involvement is seen.
Alternative portal venous drainage (PVD) connects the donor portal vein to the recipient superior mesenteric vein or its major branch vessel, which creates a more physiologic efflux of insulin towards the liver.
An important clue to the presence of a midgut malrotation or nonrotation is the reversal of the normal relative positions of the superior mesenteric vein (SMV) and artery, first described by Nichols and Li as the "SMV rotation sign.
Transverse ultrasound image through the upper abdomen showed superior mesenteric vein noted to the left of the superior mesenteric artery hence malrotation should be considered (Fig.
Incidental note was also made of double inferior vena cavae (Figures 1 and 3) and transposition of the superior mesenteric artery and superior mesenteric vein axis with associated intestinal malrotation.
CT abdomen + pelvis (Oral & IV contrast) revealed hepatosplenomegaly; thrombosis of portal vein & it's right branch, splenic vein, superior mesenteric vein and inferior vena cava; collaterals in retroperitoneum, pelvic region, anterior abdominal wall, posterior spinal musculature; right sided varicocoele noted with gross ascites.
They provide valuable additional information on the patency of the portal vein and superior mesenteric vein which is critical in the evaluation of cirrhotic livers and pancreatic cancer, as examples.
Contrast CT abdomen showed a thrombus in the superior mesenteric vein (Fig.

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