RT Book, Section A1 Spigel, David R. A1 Greco, F. Anthony A2 Boyiadzis, Michael M. A2 Frame, James N. A2 Kohler, David R. A2 Fojo, Tito SR Print(0) ID 1128252208 T1 Carcinoma of Unknown Primary T2 Hematology-Oncology Therapy, 2e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9780071637893 LK hemonc.mhmedical.com/content.aspx?aid=1128252208 RD 2024/04/16 AB EpidemiologyTable Graphic Jump Location|Download (.pdf)|PrintEpidemiologyIncidence:Unknown✫ (Estimated at 30,000–45,000 patients/year)Stage at PresentationMedian age:Varies by histology (usually sixth decade)Local/regional:90%✫Due to patient heterogeneity and tumor registry misclassification Cancer Facts and Figures 2013, the America Cancer SocietyGreco FA, Hainsworth JD. In: DeVita VT, Jr, Hellman S, Rosenberg SA, eds. Cancer: Principles & Practice of Oncology, 8th ed. Lippincott; 2008:2363–2388Hainsworth JD et al. J Clin Oncol 1991;9:1931–1938Hainsworth JD, Greco FA. N Engl J Med 1993;329:257–263