| 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) |
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| 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) |
| biochemical metastasis | The transportation and induction of abnormal immunochemical specificities in apparently normal organs. (05 Mar 2000) |
| calcareous metastasis | The deposit of calcareous material in remote tissues in the event of extensive resorption of osseous tissue in caries, malignant neoplasms, and so on. (05 Mar 2000) |
| metastasis | 1. <cell biology, oncology> The transfer of disease from one organ or part to another not directly connected with it. It may be due either to the transfer of pathogenic microorganisms (for example, tubercle bacilli) or to transfer of cells, as in malignant tumours. The capacity to metastasize is a characteristic of all malignant tumours. 2. Pleural: metastases. A growth of pathogenic microorganisms or of abnormal cells distant from the site primarily involved by the morbid process. Origin: Gr. Stasis = stand, stoppage (12 Nov 1997) |
| haematogenous metastasis | See: metastasis. (05 Mar 2000) |
| satellite metastasis | Metastasis within the immediate vicinity of a primary malignant neoplasm; e.g., skin adjacent to a melanoma. (05 Mar 2000) |
| neoplasm metastasis | The transfer of a neoplasm from one organ or part of the body to another remote from the primary site. The ability to metastasize is characteristic of all malignant neoplasms. (12 Dec 1998) |
| lymphatic metastasis | Transfer of a neoplasm from its primary site to lymph nodes or to distant parts of the body by way of the lymphatic system. (12 Dec 1998) |
| lymphogenous metastasis | See: metastasis. (05 Mar 2000) |
| anterior tibial node | A small inconstant lymph node in front of the interosseous membrane along the upper part of the anterior tibial vessels. Synonym: nodus tibialis anterior, anterior tibial node. (05 Mar 2000) |
| artery to atrioventricular node | The atrioventricular branches or the nodal branches, the small arteries supplying the atrioventricular node; they usually arise from the right coronary artery where it starts to descend the posterior interventricular sulcus. Synonym: ramus nodi atrioventricularis, atrioventricular nodal branch, branch to atrioventricular node. (05 Mar 2000) |
| artery to the sinuatrial node | Ascending atrial branch, usually (55%) arising from the anterior stem of the right coronary artery (but 35-45% arising from the circumflex branch of the left coronary artery), which runs around the base of the superior vena cava to reach the sinuatrial node. Synonym: ramus nodi sinuatrialis arteriae coronaria dextra, branch to sinuatrial node, sinuatrial nodal branch of right coronary artery, sinuatrial node artery. (05 Mar 2000) |
| atrioventricular node | <cardiology> The location in the heart's conduction system, between the atria and the ventricles, which conducts the normal electrical impulse from the atria to the ventricles. (27 Sep 1997) |
| A-V node | <cardiology> The location in the heart's conduction system, between the atria and the ventricles, which conducts the normal electrical impulse from the atria to the ventricles. (27 Sep 1997) |