RT Book, Section A1 Clark, Jeffrey W. A1 Longo, Dan L. A2 Kasper, Dennis A2 Fauci, Anthony A2 Hauser, Stephen A2 Longo, Dan A2 Jameson, J. Larry A2 Loscalzo, Joseph SR Print(0) ID 1120791927 T1 Cancer Cell Biology T2 Harrison's Principles of Internal Medicine, 19e YR 2014 FD 2014 PB McGraw-Hill Education PP New York, NY SN 9780071802154 LK accessmedicine.mhmedical.com/content.aspx?aid=1120791927 RD 2021/04/16 AB Cancers are characterized by unregulated cell division, avoidance of cell death, tissue invasion, and the ability to metastasize. A neoplasm is benign when it grows in an unregulated fashion without tissue invasion. The presence of unregulated growth and tissue invasion is characteristic of malignant neoplasms. Cancers are named based on their origin: those derived from epithelial tissue are called carcinomas, those derived from mesenchymal tissues are sarcomas, and those derived from hematopoietic tissue are leukemias, lymphomas, and plasma cell dyscrasias (including multiple myeloma).