Non-invasive breast cancers indicate the cancer has not spread beyond the ducts or lobules into other breast tissue. Lobules are the glands that produce milk, while ducts carry the milk to the nipple. It is also called in-situ breast cancer, stage 0 breast cancer or pre-invasive breast cancer. Treatments will depend on several factors.
Monitoring LCIS
The American Cancer Society notes that Lobular Carcinoma In Situ, or LCIS, is not considered an actual cancer. In most cases, doctors will not recommend any sort of treatment--just regular follow-ups. In such cases, patients should have a yearly mammogram and breast exam. Magnetic resonance imaging, or MRI, tests might be a good addition to mammograms; discuss the risks and benefits with your doctor.
Prevention
While no one magic bullet exists for preventing breast cancer, certain things like maintaining a healthy weight, can aid in prevention. Talk to your doctor about preventative strategies to reduce your risk of invasive breast cancer.
Medications and Surgery
In some cases, taking tamoxifen or raloxifene, drugs that interrupt estrogen production linked to breast cancer, might be beneficial. Your doctor can also give you information on clinical drug trials for breast cancer prevention. Some women, especially those with a family history of breast cancer, might consider a double mastectomy (surgical removal of the breasts).
DCIS and Surgery
You will most likely undergo surgery for Ductal Carcinoma In Situ, or DCIS; options include a lumpectomy (just removing the cancer) or a mastectomy and will depend on the size of the affected area and other factors. Radiation usually follows lumpectomies.
DCIS and Tamoxifen
If your DCIS is estrogen-dependent, using tamoxifen for five years post-surgery can reduce the chances of recurring DCIS or invasive breast cancer.
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