NCCN Guidelines for Patients
Breast Cancer - Carcinoma in Situ
, 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
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.
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 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.
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
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