| lymph nodes | Small, bean-shaped organs located throughout the lymphatic system. The lymph nodes store special cells that can trap cancer cells or bacteria that are traveling through the body in lymph. Also called lymph glands. (12 Dec 1998) |
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| lymph nodes of abdominal organs | The numerous lymph nodes receiving lymph from abdominal organs located in association with the visceral branches of the aorta. Synonym: nodi lymphatici abdominis viscerales. (05 Mar 2000) |
| lymph nodes of elbow | Two groups of nodes, superficial and deep, lying along the basilic vein above the medial epicondyle; they receive afferents from the ulnar side of the forearm and hand, and send efferents to the brachial nodes. Synonym: nodi lymphatici cubitales, epitrochlear nodes, lymph nodes of elbow. (05 Mar 2000) |
| ascending branch of the inferior mesenteric artery | <anatomy, artery> Branch of the left colic artery (from inferior mesenteric artery) that passes anteriorly to the left kidney into the transverse mesocolon, where it anastomoses with the middle colic artery. It thus forms an anastomosis between superior and inferior mesenteric arteries, and is a component of the marginal artery (Drummond) of the colon. Synonym: arteria ascendens, arteria intermesenterica. (05 Mar 2000) |
| mesenteric | <anatomy> Pertaining to the mesentery: a membranous fold attaching various organs to the body wall. Origin: Gr. Mesenterikos (18 Nov 1997) |
| mesenteric adenopathy | <radiology> 4% in Hodgkin's disease, 50% in non-Hodgkin's lymphoma, ** sandwich sign (12 Dec 1998) |
| mesenteric arteries | Arteries which arise from the abdominal aorta and distribute to most of the intestines. (12 Dec 1998) |
| mesenteric artery, inferior | The artery supplying nearly all the left half of the transverse colon, the whole of the descending colon, the sigmoid colon, and the greater part of the rectum. It is smaller than the superior mesenteric artery (mesenteric artery, superior) and arises from the aorta above its bifurcation into the common iliac arteries. (12 Dec 1998) |
| mesenteric artery occlusion | Obstruction of arterial flow in the mesenteric circulation by an embolus or thrombus; usually refers to occlusion of the superior mesenteric artery, although atherosclerotic narrowing may involve all three major splanchnic branches (coeliac, superior, and inferior mesenteric). (05 Mar 2000) |
| mesenteric cyst | A congenital thin-walled cyst of the abdomen between the leaves of the mesentery, which may be of wolffian or lymphatic duct origin. As it enlarges it may cause colicky pain and intestinal obstruction. (dorlamd, 27th ed) (12 Dec 1998) |
| mesenteric glands | See: mesenteric lymph nodes. (05 Mar 2000) |
| mesenteric hernia | Hernia through a hole in the mesentery. (05 Mar 2000) |
| mesenteric lymphadenitis | A condition clinically resembling acute appendicitis, in which there is inflammation of the mesenteric lymph nodes receiving lymph from the intestine. A septal form, which is frequently fatal, and a milder form, which is self-limited, are caused by yersinia (pasteurella) pseudotuberculosis. (12 Dec 1998) |
| mesenteric portion of small intestine | The freely movable portion of the small intestine supplied with a mesentery, comprising the jejunum and ileum. Synonym: mesenteric portion of small intestine. (05 Mar 2000) |
| mesenteric vascular occlusion | Obstruction of the flow in the mesenteric circulation by atherosclerosis, emboli or thrombi, stenosis, trauma, and compression or intrinsic pressure from adjacent tumours. Rare causes are drugs, intestinal parasites, and vascular immunoinflammatory diseases such as periarteritis nodosa and thromboangiitis obliterans. (12 Dec 1998) |