| lymphocytic leukaemia | <haematology, oncology> An acute form of childhood leukaemia characterised by the development of abnormal cellsdevelop in the bone marrow and lymphoblasts are found in blood-formingtissues. A type of chronic leukaemia found most often in the elderly, it is characterised by the presence of mature lymphocytes in the blood. Origin: Gr. Haima = blood (13 Nov 1997) |
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| lymphocytic leukemoid reaction | Leukocytosis of varying degree, with adult lymphocytes and immature forms amounting to 40% (or more) of the total number of white blood cells in the circulating blood; may be observed in association with pertussis, infectious mononucleosis, gonorrhoea, chickenpox, and sarcoidosis. (05 Mar 2000) |
| lymphocytic leukocytosis | A condition in which the blood contains an unusually high number of normal lymphocytes. (09 Oct 1997) |
| lymphocytic leukopenia | Reduction in the number of lymphocytes. (12 Dec 1998) |
| lymphocytic lymphoma | <oncology, tumour> A cancer of lymphatic tissues, the tumour cells are mostly abnormal lymphocytes. (13 Nov 1997) |
| lymphocytic thyroiditis | <endocrinology> Inflammation of the thyroid gland without the formation of pus. Noninfectious nonbacterial thyroid inflammation. (27 Sep 1997) |
| lymphocytoblast | Synonym: lymphoblast. Origin: Lymphocyte + G. Blastos, germ (05 Mar 2000) |
| lymphocytoma | <oncology, tumour> A mass of mature lymphocytes which at first glance resembles a tumour. (09 Oct 1997) |
| lymphocytopenia | A condition in which the blood contains an abnormally low number of lymphocytes. (09 Oct 1997) |
| lymphocytopoiesis | The formation of lymphocytes. Origin: Lymphocyte + G. Poiesis, a making (05 Mar 2000) |
| lymphocytosis | A condition in which the blood contains an unusually high number of normal lymphocytes. (09 Oct 1997) |
| lymphocytotoxic antibodies | Antibody's specific for histocompatibility antigens of lymphocytes and which, upon combining with the antigens, induce cellular damage or death. (05 Mar 2000) |
| lymphoderma | A condition resulting from any disease of the cutaneous lymphatic vessels. Origin: Lympho-+ G. Derma, skin (05 Mar 2000) |
| lymphoduct | A lymphatic vessel. See: lymph vessels. Origin: Lympho-+ L. Ductus, a leading (05 Mar 2000) |
| lymphoedema | <dermatology, oncology> Swelling of the subcutaneous tissues caused by obstruction of the lymphatic drainage. It results from fluid accumulation and may arise from surgery, radiation or the presence of a tumour in the area of the lymph nodes. (14 Oct 1997) |
| lateral pericardiac lymph nodes | Small lymph nodes located along the pericardiacophrenic vessels, they drain the pericardium. Synonym: nodi lymphatici pericardiales laterales. (05 Mar 2000) |
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| lateral superficial cervical lymph nodes | One to four nodes lying along the external jugular vein; they drain the skin and superficial structures over the region of the sternocleidomastoid muscle and send efferent vessels to the deep lateral cervical lymph nodes. Synonym: nodi lymphatici cervicales laterales superficiales. (05 Mar 2000) |
| left colic lymph nodes | Small nodes along the left colic artery and its branches that drain the left flexure and upper part of the descending colon; efferent vessels pass to the inferior mesenteric nodes. Synonym: nodi lymphatici colici sinistri. (05 Mar 2000) |
| left gastric lymph nodes | Nodes located along the left gastric artery and its branches; they are divided into paracardial, upper and lower groups. Synonym: nodi lymphatici gastrici sinistri, superior gastric lymph nodes. (05 Mar 2000) |
| left gastroepiploic lymph nodes | Nodes located in the greater omentum along the left gastroepiploic artery that drain part of the greater curvature of the stomach and greater omentum. Synonym: nodi lymphatici gastro-omentales sinistri, left gastro-omental nodes. (05 Mar 2000) |
| left lumbar lymph nodes | The chain of lymph nodes associated with the aorta in the abdomen; it is divided into three groups: lateral aortic lymph nodes on the left of the aorta; pre-aortic lymph nodes in front of the aorta; post-aortic lymph nodes, behind the aorta. Synonym: nodi lymphatici lumbales sinistri, lumbar lymph nodes. (05 Mar 2000) |
| lingual lymph nodes | Lymph node along the lingual vein receiving drainage from the tongue (except tip); drain to submandibular lymph nodes. Synonym: nodi lymphatici linguales. (05 Mar 2000) |
| lumbar lymph nodes | right lumbar lymph nodes, intermediate lumbar lymph nodes, left lumbar lymph nodes |