| GLH | germinal layer hemorrhage; giant lymph node hyperplasia |
|---|---|
| GLNH | giant lymph node hyperplasia |
| HLN | hilar lymph node; hyperplastic liver nodules |
| LHR | leukocyte histamine release; lymph node homing receptor |
| LN | Lesch-Nyhan [syndrome]; lipoid nephrosis; Lisch nodule; low necrosis; lupus nephritis; lymph node |
| lateral lacunar lymph node | A lymph node of the external iliac group located lateral to the external iliac artery at the vascular lacuna. Synonym: nodus lacunaris lateralis, lateral lacunar node. (05 Mar 2000) |
|---|---|
| lymph node | <anatomy> Small bean-shaped organ made up of a loose meshwork of reticular tissue in which are enmeshed large numbers of lymphocytes, macrophages and accessory cells located along the lymphatic system. Recirculating lymphocytes leave the blood through the specialised high endothelial venules of the lymph node and pass through the node before being returned to the blood through the lymphatic system. Because the lymph nodes act as drainage points for tissue fluids, they are also regions in which foreign antigens present in the tissue fluid are most likely to begin to elicit an immune response. Nodes filter out bacteria or cancer cells that may travel through the lymphatic system. Synonym: lymph glands. (14 Oct 1997) |
| lymph node excision | Surgical excision of one or more lymph nodes. Its most common use is in cancer surgery. (12 Dec 1998) |
| lymph node of azygos arch | A lymph node of the posterior mediastinal group located adjacent to the arch of the azygos vein. Synonym: nodus lymphaticus arcus venae azygos. (05 Mar 2000) |
| lymph node of ligamentum arteriosum | A lymph node of the anterior mediastinal group located adjacent to the ligamentum arteriosum. Synonym: nodus ligamenti arteriosi, lymph node of ligamentum arteriosum. (05 Mar 2000) |
| lymph node permeability factor | A substance, released by lymphocytes when stimulated or damaged, that increases capillary permeability and the accumulation of mononuclear cells. (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 artery, superior | A large vessel supplying the whole length of the small intestine except the superior part of the duodenum. It also supplies the caecum and the ascending part of the colon and about half the transverse part of the colon. It arises from the anterior surface of the aorta below the coeliac artery at the level of the first lumbar vertebra. (12 Dec 1998) |
| 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) |