Source:http://linkedlifedata.com/resource/umls/id/C1709883
NCI: Surgical removal of the lymph nodes located in a particular anatomic region. This procedure is commonly performed as a component of cancer staging.,NCI: A surgical procedure to remove some of the lymph nodes that drain lymph from the area around a tumor. The lymph nodes are then examined under a microscope to see if cancer cells have spread to them.