Dear fooddiva,
MastectomyMastectomy
Mastectomy - series had been the standard treatment of DCIS for a number of years. Breast conservation surgery (BCS)has gained acceptance as treatment of DCIS based on the success it had with
invasiveGestational trophoblastic disease
Invasive
Minimally invasive heart surgery
Noninvasive
Noninvasive test
Squamous cell carcinoma - invasive breast cancers. When BCS is used, radiation therapy is often a part of the treatment plan based on results of the National Surgical Adjuvant Breast Project [NSABP] B-17 trial, because the prevalence of noninvasive breast cancer (DCIS) in the same breast, was reduced from 13.4% to 8.2% and, for invasive cancer, from 13.4% to 3.9%, after using radiation therapy. Some factors may decrease the decision to give radiation therapy - such as: what the tumor looks like under the microscope (having favorable features), having a good margin around the DCIS, or no remaining calcifications after surgery. So the information from the surgery will all be put together in order to help to make the decision as to whether or not radiation therapy will be of benefit to the individual.
The use of hormone therapy (tamoxifen)after surgery for DCIS has been shown to decrease the incidence of invasive breast cancer.