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NCCN Guidelines for Patients


Breast Cancer - Carcinoma in Situ

(stage 0)

, Version 1.2016



Breast cancer screening

Breast cancer screening

Since you’ve had LCIS, your doctor will want to watch

you closely. Breast cancer screening is an ongoing

testing that can help to find cancer before it spreads.

Cancer that is only in the breast is more likely to be


Breast cancer in women who’ve had LCIS can start

anywhere in the breast. It doesn’t always start where

LCIS was found. Breast cancer may start in the ducts

rather than the lobules. It can also start in the breast

that didn’t have LCIS. Although rare, breast cancer

can still occur if you’ve had a total mastectomy of

both breasts.

Your doctor will create a screening plan that is right

for you. Your plan will depend on how likely you are to

get breast cancer. The tests used to screen for breast

cancer are discussed next.

Breast awareness

A self-exam is advised for all women at increased

risk for breast cancer. Examining your own breasts is

important. You should know the feel and look of your

breasts so that you can tell if major changes have

occurred. If you get menstrual periods, an exam at

the end of your period is best.

See your doctor if you find changes that last for more

than a month. He or she can decide if you need

more tests. Changes in breasts are often not cancer.

However, if there’s a problem, you will get treated

faster the sooner you see your doctor.

Complete breast exam

A complete breast exam is advised every 6 to 12

months after a diagnosis of LCIS. This exam involves

your doctor touching your breasts and nearby lymph

nodes. If you had a total mastectomy of both breasts,

your doctor will examine your chest or reconstructed


Screening mammogram

Screening mammograms are advised after a

diagnosis of LCIS for women 30 years of age and

older. Screening of both breasts every year is needed.

A mammogram isn’t done if you’ve had both breasts

removed even if you had breast reconstruction.

Breast MRI

Your doctor may want you to get a breast MRI







maging) every year. It is

advised if your family has a strong history of breast

cancer. Breast MRI is also advised if you’ve had

radiation therapy near your breasts.

Breast MRI uses a magnetic field and radio waves to

make pictures of the insides of your breasts. Before

the test, a contrast dye may be injected into your vein

to make the pictures clearer. The dye may cause you

to feel flushed or get hives. Rarely, serious allergic

reactions occur. Tell your doctor if you have had bad

reactions before.

For breast MRI, you must remove your top and bra

and lie face down on a table. The table has padded

openings for your breasts. In the openings, there are

coils that help to make pictures. During breast MRI,

the table moves slowly through the tunnel of the MRI