
The
statistics and math equations of breast cancer are staggering.
The average American woman diagnosed with breast cancer is 64.
10,000 American women under the age of 40 with be given the diagnosis
of a malignant breast cancer. About 1300 of these women will die
from this disease. Breast cancer is the leading cause of cancer
for women between the ages of 20 and 59. But here is one that
should give you hope. When detected early, breast cancer has a
five-year survival rate of around 85 percent.
Mammograms
can save lives. The importance of this test is well documented,
as is the importance of early detection. Having a mammogram only
makes sense. Good sense. With mammography, breast cancer can often
be detected up to two years before it can be felt. The mammogram
is considered to be the cornerstone of early detection of breast
cancer. At this time it is the most accurate non-invasive way
to detect breast cancer at an early stage. Approximately 90 percent
of breast cancers are detected with mammography.
Today
more and more women are getting mammograms. The numbers rise with
each passing year, however, this test is still very much underused
despite all the good promotion. Not all women are following the
recommended mammogram schedule, including women who are 60 years
of age and older -- those at highest risk. Half of the breast
cancers diagnosed in the United States occur in women over 65
years of age, yet a study by Johns Hopkins researchers found that
only about half of the women in this age group had mammography.
Conflicting
reports from those in the medical community have clouded the mammogram
issue, confusing many women. Though the American Cancer Society
has stood firmly behind its recommendation that women begin mammogram
screening at age 40, this issue became blurred recently when a
panel from the National Institutes of Health (NIH) did not concur
with the guidelines already in place for mammogram screening.
At
this time, we still do not know the cause or causes of breast
cancer. A breast cancer gene has been identified, and it is likely
that there is a genetic basis for its development. But, this may
be only one of the factors involved. Certain women are at a higher
risk for developing breast cancer. Women with a strong family
history of breast cancer, a personal history of breast cancer,
early menstruation (before the age of 11), late menopause, a first
pregnancy (to term) after the age of 30, and women who do not
breastfeed are often considered to have an increased risk. Other
factors, such as long-term estrogen therapy, a high fat diet,
and alcohol use may play a part in the development of breast cancer,
though at this time their role remains unclear. Still, more than
70 percent of the women diagnosed with breast cancer have no known
risk factors. It is important to look toward the goal of early
detection of breast cancer, since we are not yet able to prevent
its occurrence.
You
may have heard the alarming statistic, that one out of every eight
women in the United States will develop breast cancer. Though
there is no question that breast cancer is a major health care
issue, this statement can be misleading. This statistic is taken
from data indicating that the lifetime risk of a woman developing
breast cancer was approximately 12 percent (or one out of eight)
if she lives to be over 100 years old. Since breast cancer risk
increases as a woman ages, the risk in any one year of developing
breast cancer can be far from the quoted, "one out of eight."
But these numbers may be enough to remind women of the importance
of regular breast care.
Women
need to perform regular breast self examination, schedule annual
breast examinations by their health care provider, and have regular
mammography screenings at the frequency recommended for their
particular age and situation. Early discovery of breast cancer
leads to better outcome and chance of survival. The key to cure
is early detection and prompt treatment.
So
what is a mammogram?
Mammography is a special X-ray technique used to examine and visualize
the breast. It can detect tumors and cysts, and will help to differentiate
between benign (non-cancerous) and malignant (cancerous) tumors.
A radiologist will read the X-rays, looking for signs of cancer,
changes in breast tissue, and other breast problems.
How
is it done?
On the day of your mammogram you will be told not to apply any
deodorant, talcum powder, creams, ointments, or perfume. They
could cause the image to be obscured. You might want to wear a
two-piece outfit. If you've had a prior mammogram at a different
facility it is important to bring that mammogram along, or arrange
for it to be delivered. This will allow the radiologist and your
health care provider to compare your test results, making it more
likely that they will notice subtle changes. When you arrive at
the facility, you will fill out a brief medical history, noting
the reason for the mammogram and any breast irregularities you
or your health care provider have discovered. (Tell your technician
prior to the procedure if you are pregnant or nursing, or if you
have breast implants. Don't worry, implants won't rupture during
the procedure.) You will then be asked to undress from the waist
up, remove any jewelry, and to change into a gown that opens in
the front.
The
mammography technologist will position your breasts. One breast
at a time is placed on a flat surface that contains the X-ray
plate. A compression paddle will press firmly into your breast,
flattening out your breast tissue, so that the tissue is more
easily visualized, using only a minimal amount of radiation. The
technologist may ask you to hold your breath while the picture
is taken. While some women state it is only uncomfortable,
others state it is quite painful. No matter the description, the
test takes literally seconds. Typically two views of each breast
are looked at - one from above and one from the side.. In some
cases, the breasts might be marked with small plastic markers
by the technician for areas that have moles, scars, or other areas
they might want to look closely at, prior to the X-ray being done.
The breast compression does not harm the breast tissue. Your mammogram
will generally take about 20 to 30 minutes. Planning your mammogram
shortly after your period, during the first two weeks of your
menstrual cycle may help to make the procedure more comfortable
for you, since your breasts are less tender at this time. Some
facilities will perform a breast exam along with the mammogram.
The
results
Some centers will give you on the spot results, while others will
send final results back to your physician. If they do give you
the results immediately, it will most likely be done by the radiologist
who specializes in womens breast health.
What's
the difference between screening and diagnostic mammograms? Screening
mammography is performed on women over the age of 40, who are
free of symptoms. Most screening mammograms show no abnormality.
Diagnostic mammography is performed to resolve a particular question
related to the breast.
When
do I get my first mammogram? This question has been at the center
of controversy between physicians, the American Cancer, and the
National Institutes of Health (NIH). Fortunately for women, the
American Cancer Society has held firm, still recommending that
women begin mammogram screenings at age 40, followed by mammograms
every one to two years in the forties and every year after the
age of 50. The research evidence now tells us that by beginning
a program of annual mammography at age 40, women can give themselves
the best chance of detecting cancer early, when there is a higher
opportunity for long-term survival, and more treatment options,"
said Myles P. Cunningham, MD, president of the American Cancer
Society. Breast cancers typically grow faster in women in their
forties than in older women. Numerous studies have shown that
there is a decrease in death from breast cancer in women between
the ages of 40 and 49 through regular mammography.
Each
woman has the daunting task of ultimately deciding for herself
when to begin having regular mammogram screenings. Women over
the age of 40 may want to err on the side of caution, choosing
to have a baseline mammogram, even if they are without symptoms.
Your primary care provider may also recommend a mammogram at this
age. But, ultimately, the burden of decision rests with the woman.
How often do you need to schedule a mammogram after you have your
baseline? It depends on your age and medical history. Typically,
after your baseline mammogram at the age of 40, as recommended
by the American Cancer Society, a woman who is symptom-free should
schedule a mammogram, at a facility accredited by the American
College of Radiology, every two years until the age of fifty.
After age fifty, an annual screening mammogram is recommended.
Women with a family history of breast cancer or other risk factors
may be advised to have more frequent mammography.
How
safe is a mammogram?
Mammography does expose you to some radiation. The typical radiation
exposure is very low and is considered to be safe. Federal law
requires that any facility doing mammography follow certain safety
guidelines. Research suggests that the benefit of early cancer
detection will far outweigh any risk from the level of radiation
exposure during a mammogram.
Screening
mammograms are not generally recommended for the low-risk women
under the age of 40. The younger you are, the more vulnerable
your breast is to radiation.
How reliable is a mammogram? Take care in choosing your mammogram
facility. The accuracy of your mammogram depends heavily on the
experience and skill of the radiologist reading it.
Mammograms
are not foolproof -- they do not always tell all. Some breast
changes, including lumps that can be felt, do not show up on a
mammogram. Some cancer could be hidden by breast tissue, and might
not show up on a mammogram. Changes may be particularly difficult
to spot in the dense, glandular breast tissue of younger women.
Last year there were approximately 180,000 new cases of breast
cancer that were diagnosed in the US. It is estimated that as
many as 10 percent of these cancers, or 18,000 cases, did not
show up on a mammogram.
By
utilizing monthly breast self-exams, regular clinical examination
by your health care provider, and annual mammograms, you can increase
the likelihood of early detection if cancer is present . One study
found that 15 percent of cancers were detected by breast exam.
When the breast exam was performed along with a mammogram, doctors
were able to detect 5 percent more cancers than with mammography
alone.
New imaging techniques are on the horizon. Within the next decade,
advances in the field should allow radiologists to better visualize
breast abnormalities - both malignant and benign. It is not likely
that any imaging technique in the near future will totally replace
the mammogram.