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NCCN Guidelines for Patients


Breast Cancer - Carcinoma in Situ

(stage 0)

, Version 1.2016





A darker, circular area of skin on the breast surrounding the


aromatase inhibitor

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


Involving both sides of the body or both breasts.

bilateral diagnostic mammogram

Pictures of the insides of both breasts that are made from

multiple x-rays.

bilateral salpingo-oophorectomy

Surgery that removes both ovaries and both fallopian tubes.


Removal of small amounts of tissue or fluid to be tested for



An extra dose of radiation to a specific area of the body.


Radiation received from a radioactive object placed near or

in the tumor.

breast-conserving therapy

Cancer treatment that includes removing the breast lump

and radiation therapy.

breast implant

A small bag filled with salt water, silicone gel, or both that is

used to remake breasts.

breast reconstruction

Surgery to rebuild breasts.

cancer stage

Rating of the growth and spread of tumors.


Cancer that starts in cells that form the lining of organs and

structures in the body.

carcinoma in situ

Abnormal or cancer cells have not grown into the next layer

of tissue.


A health condition in which the lens of the eye becomes



A flexible tube inserted in the body to give treatment or drain

fluid from the body.

clinical breast exam

A physical exam of the breasts by a health professional to

feel for disease.

clinical trial

Research on a test or treatment to assess its safety or how

well it works.

computed tomography (CT)

A test that uses x-rays from many angles to make a picture

of the inside of the body.

connective tissue

Supporting and binding tissue that surrounds other tissues

and organs.


A dye put into your body to make clearer pictures during

imaging tests.

core needle biopsy

Use of a needle to remove a large tissue sample to test for

cancer cells.


A disease that causes high levels of blood sugar.


A tube in the breast that drains breast milk.

ductal carcinoma in situ (DCIS)

Cancer that started within and hasn’t grown beyond the

breast ducts.

endocrine therapy

Treatment that stops the making or action of hormones in the

body. Also called hormone therapy.


A hormone that develops female body traits.