Source:http://linkedlifedata.com/resource/umls/id/C1516164
NCI: The study of the origins, growth, and treatment of any of various types of malignant neoplasms, most of which invade surrounding tissues, may metastasize to several sites, and are likely to recur after attempted removal and to cause death of the patient unless adequately treated; especially, any such carcinoma or sarcoma, but in ordinary usage, especially the former.