Source:http://linkedlifedata.com/resource/umls/id/C0588055
NCI: A lymph node located in the mediastinum. Mediastinal lymph nodes are arranged in three groups, one on the lateral, another on the medial, and a third on the anterior aspect of the vessels; the third group is, however, sometimes absent. (NCI),NCI: A lymph node located in the mediastinum. Mediastinal lymph nodes are arranged in three groups, one on the lateral, another on the medial, and a third on the anterior aspect of the vessels; the third group is, however, sometimes absent.