• 1
    National Comprehensive Cancer Network (NCCN). NCCN Clinical Practice Guidelines in Oncology, Breast Cancer v1.2009. Available at: Accessed August 28, 2009.
  • 2
    Vlastos G, Jean ME, Mirza AN, et al. Feasibility of breast preservation in the treatment of occult primary carcinoma presenting with axillary metastases. Ann Surg Oncol. 2001; 8: 425-431.
  • 3
    Foroudi F, Tiver KW. Occult breast carcinoma presenting as axillary metastases. Int J Radiat Oncol Biol Phys. 2000; 47: 143-147.
  • 4
    Shannon C, Walsh G, Sapunar F, A'Hern R, Smith I. Occult primary breast carcinoma presenting as axillary lymphadenopathy. Breast. 2002; 11: 414-418.
  • 5
    Zippin C, Lum D, Hankey BF. Completeness of hospital cancer case reporting from the SEER Program of the National Cancer Institute. Cancer. 1995; 76: 2343-2350.
  • 6
    National Cancer Institute. SEER Registries—Population Characteristics. Available at: Accessed September 15, 2009.
  • 7
    National Cancer Institute. Surveillance, Epidemiology and End Results (SEER) Program. Available at: Accessed August 28, 2009.
  • 8
    Surveillance, Epidemiology, and End Results (SEER) Program. SEER/Stat database: Incidence-SEER 17 Registries limited-use plus Hurricane Katrina impacted Louisiana cases, November 2008 submission (1973-2006 varying). Linked to county attributes-total US, 1969-2006 counties. Bethesda, Md: National Cancer Institute, DCCPS, Surveillance Research Program, Cancer Statistics Branch; released April 2009, based on the November 2008 submission.
  • 9
    Greene FL, Page DL, Fleming ID, et al, eds. AJCC Staging Manual. 6th ed. New York: Springer-Verlag; 2002.
  • 10
    Housman DM, Decker RH, Wilson LD. Regarding adjuvant radiation therapy in Merkel cell carcinoma: selection bias and its affect on overall survival. J Clin Oncol 25: 4503-4504, 2007; author reply 4504-4505.
  • 11
    Arriagada R, Le MG, Rochard F, Contesso G. Conservative treatment versus mastectomy in early breast cancer: patterns of failure with 15 years of follow-up data. Institut Gustave-Roussy Breast Cancer Group. J Clin Oncol. 1996; 14: 1558-1564.
  • 12
    Blanchard DK, Farley DR. Retrospective study of women presenting with axillary metastases from occult breast carcinoma. World J Surg. 2004; 28: 535-539.
  • 13
    Fisher B, Anderson S, Bryant J, et al. Twenty-year follow-up of a randomized trial comparing total mastectomy, lumpectomy, and lumpectomy plus irradiation for the treatment of invasive breast cancer. N Engl J Med. 2002; 347: 1233-1241.
  • 14
    Fisher B, Redmond C, Poisson R, et al. Eight-year results of a randomized clinical trial comparing total mastectomy and lumpectomy with or without irradiation in the treatment of breast cancer. N Engl J Med. 1989; 320: 822-828.
  • 15
    Poggi MM, Danforth DN, Sciuto LC, et al. Eighteen-year results in the treatment of early breast carcinoma with mastectomy versus breast conservation therapy: the National Cancer Institute randomized trial. Cancer. 2003; 98: 697-702.
  • 16
    van Dongen JA, Voogd AC, Fentiman IS, et al. Long-term results of a randomized trial comparing breast-conserving therapy with mastectomy: European Organization for Research and Treatment of Cancer 10801 trial. J Natl Cancer Inst. 2000; 92: 1143-1150.
  • 17
    Veronesi U, Cascinelli N, Mariani L, et al. Twenty-year follow-up of a randomized study comparing breast-conserving surgery with radical mastectomy for early breast cancer. N Engl J Med. 2002; 347: 1227-1232.
  • 18
    Merson M, Andreola S, Galimberti V, Bufalino R, Marchini S, Veronesi U. Breast carcinoma presenting as axillary metastases without evidence of a primary tumor. Cancer. 1992; 70: 504-508.
  • 19
    Campana F, Fourquet A, Ashby MA, et al. Presentation of axillary lymphadenopathy without detectable breast primary (T0 N1b breast cancer): experience at Institut Curie. Radiother Oncol. 1989; 15: 321-325.
  • 20
    Vilcoq JR, Calle R, Ferme F, Veith F. Conservative treatment of axillary adenopathy due to probable subclinical breast cancer. Arch Surg. 1982; 117: 1136-1138.
  • 21
    Varadarajan R, Edge SB, Yu J, Watroba N, Janarthanan BR. Prognosis of occult breast carcinoma presenting as isolated axillary nodal metastasis. Oncology. 2006; 71: 456-459.
  • 22
    Galimberti V, Bassani G, Monti S, et al. Clinical experience with axillary presentation breast cancer. Breast Cancer Res Treat. 2004; 88: 43-47.
  • 23
    Olson JA Jr, Morris EA, Van Zee KJ, Linehan DC, Borgen PI. Magnetic resonance imaging facilitates breast conservation for occult breast cancer. Ann Surg Oncol. 2000; 7: 411-415.
  • 24
    Buchanan CL, Morris EA, Dorn PL, Borgen PI, Van Zee KJ. Utility of breast magnetic resonance imaging in patients with occult primary breast cancer. Ann Surg Oncol. 2005; 12: 1045-1053.