Welcome to OnlineDeCISion.org!

This Web site offers a decision tool for health professionals to use when discussing treatment options with their patients who have DCIS.

The decision tool uses data from clinical registries and published studies to predict the likelihood of these items as a result of selected treatment options (lumpectomy, radiation, tamoxifen, and mastectomy):


  • Recurrence (DCIS or invasive cancer)
    • Ipsilateral (or same breast)
    • Contralateral
  • Likelihood of breast preservation
  • Survival

If you are a health professional:

If you are a patient and wish to use this tool with your doctor, please give them this Web address: http://onlinedecision.org.