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NCCN Guidelines for Patients


Breast Cancer - Carcinoma in Situ

(stage 0)

, Version 1.2016



noninvasive breast cancer

Cancer cells have not grown into the supporting tissue of the


partial breast irradiation

Treatment with radiation that is only directed at the surgery



A doctor who’s an expert in testing cells and tissue to find


physical exam

A review of the body by a health expert for signs of disease.

pleomorphic lobular carcinoma in situ (LCIS)

An abnormal growth of cells in breast lobules that is more

likely to grow into the fatty tissue of the breast.

primary tumor

The first mass of cancer cells in the body.


The time when teens sexually develop.

radiation therapy

The use of high-energy rays to destroy cancer cells.

risk factor

Something that increases the chance of getting a disease.

risk-reduction treatment

Methods that aim to lessen the chance of getting a disease.

sentinel lymph node biopsy

Surgery to remove the first lymph node(s) to which cancer

cells spread after leaving the breast tumor. Also called

sentinel lymph node dissection.

sentinel lymph node

The first lymph node to which cancer cells spread after

leaving the breast tumor.

side effect

An unhealthy physical or emotional response to treatment.


The steps needed to prepare for treatment with radiation.

skin-sparing mastectomy

A surgery that removes all breast tissue but saves as much

breast skin as possible.


Fatty tissue of the breast.

surgical margin

The normal tissue around the edge of a tumor that is

removed during surgery.


A drug that lowers the amount of estrogen in the body.

total mastectomy

Surgery that removes the entire breast but no chest muscles.

Also called simple mastectomy.


Use of sound waves to make pictures of the insides of the



The female organs between the legs.

whole breast radiation

Treatment of the entire breast with radiation from a machine

outside the body.