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BREAST LUMPS, MAMMOGRAMS, BIOPSIES AND CANCER
I
just found a lump in my breast. What should I do?
I
have a lump, but my mammogram is normal, so it's not cancer,
right?
I
had a routine mammogram and it showed "calcifications",
or a "nodule". I have been referred to a
surgeon. Does this mean I have cancer?
I went for my routine screening
mammogram, and I was told to come back in 6 months for another
mammogram. Is it okay to wait that long if there’s an abnormality
on the mammogram now?
I was told that my mammogram was read as
a BIRAD 4. What does that mean?
I had an abnormal mammogram and have
been told to see a radiologist or surgeon to have a biopsy done.
What does that involve?
I was seen by a surgeon because of an
abnormal mammogram, and was scheduled to have surgery. They are
going to put a wire in my breast, and then take me to the
operating room for the biopsy. Is there a simpler way to do the
biopsy?
I had a breast biopsy that
showed some pre-cancerous cells. What should be done now?
I had a breast biopsy that showed ductal
carcinoma in situ (DCIS). What should be done now?
I had a breast biopsy that showed
invasive cancer. What should be done now?
Is an MRI better than a mammogram for finding
breast cancer?
BREAST CYSTS AND LUMPS IN TEENAGERS
I
had a cyst drained, and the fluid looked green. Should the
fluid be tested for cancer?
My
teenage daughter found a lump in her breast. What should we
do?
FAMILY HISTORY
There
is no one in my family who has had breast cancer, so my chances of
getting breast cancer are very low aren't they?
My
mother had breast cancer. Does that mean I will get breast
cancer?
Is
there anything I can do to prevent from getting breast cancer?
NIPPLE DISCHARGE
I
have some drainage from my nipple. Is that normal?
BREAST CANCER RISK AND PREVENTION
How
can I determine how high my risk of breast cancer is?
If
my risk of developing breast cancer is high as calculated by the
Gail model or other risk assessment tool, is there anything I can do about it?
I
have heard that Evista (raloxifene) can also decrease my risk of
getting breast cancer. Is this true?
New Test
Predicts Response to Chemotherapy for Women with Early Breast
Cancer.
BREAST TENDERNESS
Why are my breasts
so tender?
Breast tenderness is a very common symptom. It is
rarely associated with breast cancer, but a thorough exam by an
experienced physician is important to be sure.
Most women experience at least some increase in
sensitivity or tenderness in their breasts as their menstrual
cycle In some women this can become quite
severe. The tenderness may be diffuse, involving all
of the breast tissue, or it may be localized to one breast, or one
area of one breast. Though it usually lessens after the
menstrual period it may be constant. It is clear that
changing hormone levels in the blood stream are the primary
explanation, but there may be other contributing factors.
Certain medications may increase tenderness, including birth
control pills, estrogen or progesterone (Premarin, Provera, Ogen,
Climara, Estratest, and others), and medications which contain
xanthines (Theodur, caffeine containing stimulants). Caffeine
seems to cause increased breast tenderness for many women, though
it seems to have no effect in others. Marked breast
tenderness frequently occurs in the very early stage of pregnancy
also. Sometimes a cyst can develop and enlarge rapidly,
causing localized tenderness. Less commonly, an area of
infection may occur which can be extremely tender.
If you have recently noticed
that your breasts are more tender, you should be sure to do a good
self-exam of your breasts. See if can identify a specific
area that hurts, and feel for any lumps. Look for any visible
changes such as a visible lump, or a dimpling of the skin, or
redness. Schedule an appointment with your physician, and
take a list of your current medications. Be aware of how
much caffeine you are using, including coffee, tea, sodas,
chocolate, and any caffeine-containing medications, such as diet
pills or stimulants. Be able to pinpoint when your last
menstrual period was, and whether is was normal or not. Ask
your physician's office if you should have a mammogram or other
studies before your appointment, and if you should bring your
mammograms with you.
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Will I need a biopsy?
For most women with breast tenderness, the
physician's exam will not identify any problem which needs a
biopsy. However, occasionally there is an associated lump,
which could be a fluid-filled cyst, an abscess, or a solid growth
of tissue. Such findings will likely require a procedure,
such as use of a needle, or other sort of biopsy or removal.
This may frequently be done at the time of the initial
visit. (Please note that some insurance companies do not
cover procedures to be done on the same day as your exam. If
not, you will be scheduled to return for the procedure after your
insurance company has given authorization .)
Cysts can be treated simply with drainage of the fluid
through a needle. The pain from the fluid drainage is
similar to what you would feel if you have a blood test
done. The cyst fluid usually has a greenish, yellowish, or
brownish tint. There is usually no need to "test"
the fluid if it has this typical appearance.
Abscesses usually require a small incision to drain the
infection. For small abscesses, treatment can be done
immediately. The infection causes more surrounding
tenderness than a cyst, so the drainage procedure is likely to be
more painful, but brief. The advantage of immediate
treatment may outweigh the extra tenderness. Larger
abscesses may require drainage in a hospital setting in order to
provide adequate sedation and /or anesthesia.
Solid growths of tissue may be biopsied with a needle at
the initial visit. Some anesthetic is injected around the
area to be biopsied. The needle is then inserted into the
lump to obtain a sample of tissue for analysis. An
ultrasound machine is frequently used to place the needle
precisely. Most women experience little or no discomfort with
the procedure.
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What can I do to decrease
my breast tenderness?
Once your physician has examined for any possible
problems such as a cyst, abscess or possible cancer, there are
several things you can do. If you are taking in any caffeine
on a daily basis, try cutting out all caffeine products for a
period of six weeks. This simple step may be all that is
necessary. If your tenderness goes away, you may want to
experiment by starting back on caffeine to see if your tenderness
cames back. You may find that there is a certain amount of
caffeine which you can tolerate without the symptoms.
Both vitamin E and evening primrose oil have been found
to be helpful for many women. Though the exact mechanism of action
is not known, both supplements have been found to be beneficial in
decreasing tenderness. Recommended dosages for vitamin E
range from 400 U to 1000 U per day. It is available at all
drug stores and many supermarkets without a prescription. As
an added benefit, there appears to be a decrease in riak of heart
disease in patients taking vitamin E on a regular basis.
Evening primrose oil is carried by many drug stores,
though it may be difficult to find than vitamin E. It is more
commonly recommended in England than here in the United States
. Recommended dosage is up to four tablets per day. It
can cause some gastrointestinal side effects, such as bloating or
gas, and changes in your bowel movements. These side effects
are less likely at lower dosages.
There are many simple measures to try that may
help. If your tenderness is predictable with each menstrual
cycle, you may want to begin taking on over-the-counter pain
medicine, such as Tylenol, Advil, Alleve, or other, for the week
before your period. A good hot bath once or twice a day can
help. Changing to a different bra is also occasionally
beneficial.
Depending on the severity of your tenderness, you may
want to use some or all of these measures. Most women will
obtain sufficient relief with the steps described above. For
the small group of women with persistent disabling tenderness
despite all these measures, there is a hormonal treatment which is
very effective, but which has a high likelihood of side
effects. It involves use of Danazol, a hormone used in
treatment of endometriosis. Side effects include changes in
menstrual cycle, voice changes, and body hair growth.
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Fibrocystic Disease
Breast Pain. Painful breast tissue is an
exceedingly common symptom but is usually of functional origin and
very rarely a symptom of breast cancer. Haagensen 24 carefully
recorded the symptoms of women presenting with breast carcinoma
and found pain as an unprompted symptom in only 5.4% of patients.
Although not a symptom of cancer, breast pain is a common reason
for patients to seek medical attention. Breast pain appears to be
aggravated by abnormal menstrual cycles and may be seen in young
women with menstrual irregularity, as a premenstrual symptom, or
when exogenous ovarian hormones are administered during and after
the menopause. In addition, fibrocystic change, in its severest
forms, may cause disabling breast pain. Although many observers
find painful cystic mastopathy is aggravated by excessive intake
of caffeine, nicotine, or commonly used antihistamines, other
investigators disagree.
Fibrocystic Change (Cystic Mastopathy, Cystic Mastitis).
Fibrocystic change, popularly referred to as fibrocystic disease,
represents a spectrum of clinical and histologic findings and
describes a loose association of cyst formation, breast nodularity,
stromal proliferation, and epithelial hyperplasia. 34 Fibrocystic
change appears to represent an exaggerated response of breast
stroma and epithelium to a variety of circulating and locally
produced hormones and growth factors. Clinically, patients with
fibrocystic change have dense, firm breast tissue with palpable
lumps and frequently gross cysts. This condition is commonly
painful and tender to touch. Histologically, the lesion recognized
as fibrocystic complex contains macrocysts, microcysts, stromal
fibrosis, adenosis, and a variable amount of epithelial metaplasia
and hyperplasia. All these changes can occur alone or in
combination and to a variable degree in the normal female breast.
Autopsy studies have questioned whether any of these changes,
except perhaps macrocysts, are abnormal. In fact, all of these
lesions occur commonly in the breasts of elderly patients and
appear to have no particular pathologic potential. It appears
preferable to describe each of the lesions separately and comment
about the extent and severity of the process. The term fibrocystic
disease should be abandoned in the absence of any well-defined
clinical and pathologic syndrome.
As discussed later, there is no consistent association between
fibrocystic complex and breast cancer. It is well established that
women who have undergone breast biopsy for any reason, regardless
of the underlying pathology, have a slightly higher risk of
developing subsequent breast cancer. Moreover, the incidence of
finding fibrocystic disease in autopsied breasts from women dying
of causes other than breast cancer exceeds the incidence of these
same changes in cancer-containing breasts. For those patients with
fibrocystic changes, higher risk appears to concentrate in those
whose biopsy specimens show abnormal ductal and lobular
hyperplasia and, to a lesser extent, cyst formation. Therefore,
the fibrocystic complex appears to be an exaggerated or abnormal
response to otherwise physiologic stimuli in most patients and
represents a health risk only in certain subsets.
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BREAST LUMPS
I just found a lump in my breast.
What
should I do?
Any lump in your breast should be checked by a
qualified physician to determine what it is. If you are not
sure whether it's really a "lump", or not, you may wish
to wait through a menstrual period to see if the new finding is
still present. But if it is a definite lump, you
should not delay.
A new lump may simply be a benign cyst, or it may
be the first sign of a breast cancer. In most cases,
additional studies will be done, such as a mammogram, or
ultrasound, and frequently some sort of biopsy is also
necessary. In some cases, where the new finding is not a
distinct lump, you may be asked to return for a re-exam in a few
weeks or months.
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I have a lump, but my mammogram
is normal, so it's not cancer, right?
You must understand that not all cancer shows up on
mammography. Any lump needs to be examined by a
qualified physician, whether it shows up on mammography or
not. If the lump is not seen on mammography, it may be still
need to be biopsied. An ultrasound may be helpful.
I had a routine mammogram and it
showed "calcifications", or a "nodule".
I have been referred to a surgeon. Does this mean I have
cancer?
Screening mammograms have become an important
method to screen for breast cancer. We have learned that
mammograms can often detect the earliest signs of breast cancer,
at a point in time when it can not yet be felt. Early breast
cancer often shows up as a small cluster of calcifications, which
look like a small grouping of tiny white flecks on the
mammogram, or as a small nodular area which is more white than the
surrounding breast tissue. But, these same
abnormalities can be caused by breast changes that are not
breast cancer as well. Only about one in six of these
abnormalities end up being cancer when they are biopsied.
But the only way to be sure is to sample the tissue with some sort
of biopsy. This means that most of those who
have a biopsy will find out that there is no evidence of cancer.
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I went for my routine
screening mammogram, and I was told to come back in 6 months for
another mammogram. Is it okay to wait that long if there’s an
abnormality on the mammogram now?
It’s good that you are having annual
mammograms done. Of course, every woman hopes that nothing
abnormal will be seen, and in fact about 90% of women do indeed
have a “normal” mammogram. And of the other 10%, even though
the mammogram may show something abnormal, most of these women
don’t have cancer.
Abnormalities seen on mammograms fall for the
most part into 2 categories; suspicious calcifications, or
densities. Not all calcifications are suspicious, and it would be
too complicated to go into all the subtle distinctions that are
considered in evaluating any calcifications. Generally
speaking, the calcifications which are small, clustered (and
multiple), and variable in shape and size (this is called
pleomorphic), are the ones that should be biopsied. Now if
the radiologist sees just one or two calcifications, or if they
are not that variable in size, or if for some other reason, they
aren’t that suspicious, he may recommend a “short term followup”,
which usually means, a repeat mammogram of just the involved
breast in 6 months. It doesn’t really make sense to recommend a
biopsy when the findings are not that suspicious, since it would
require doing biopsies in 50 women to find the 1 of 50 who
actually has a cancer. As it stands, only about 15% of the
abnormal calcifications which are biopsied (BIRAD 4 cases) are
cancer; the other 85% of suspicious calcifications are due to
benign changes in the breast tissue.
It is important that the radiologist
reviewing your films has lots of experience reading mammograms.
At our institution, all the radiologists who read mammograms
are reading thousands of studies every year. Our facility is
accredited by the American College of Radiology. We use the most
up to date technology for digital mammography, which
provides high resolution images, and with much less inconvenience
for the patient (rarely do the pictures need to be “done over”).
Those women who are requested to return for
followup films in 6 months in most cases will be given further
reassurance with the 6 month film and then return to an annual
schedule. A few women may be advised to have a biopsy based on
the followup. If you feel anxious about being told to come
back in 6 months, you should ask your primary care physician for a
referral to DeKalb Surgical Associates for a breast consultation.
We are experienced in evaluating breast abnormalities and will
carefully review your specific case, including the findings on
physical exam, and on mammography. If appropriate, ultrasound can
be performed at the time of your visit for additional information
(though for calcifications, ultrasound rarely is utilized).
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When your mammogram is read by the
radiologist, he will categorize the findings according to whether
anything looks suspicious or not. The American College of
Radiologists set up standards for rating mammograms, which is
called BIRADS (Breast Imaging Reporting and Data System).
Here is a table of the possible designations.
|
Category |
Diagnosis |
Number of Criteria |
|
0 |
Incomplete |
Your mammogram or ultrasound didn't give the radiologist
enough information to make a clear diagnosis; follow-up
imaging is necessary |
|
1 |
Negative |
There is nothing to comment on; routine screening
recommended |
|
2 |
Benign |
A definite benign finding; routine screening recommended |
|
3 |
Probably Benign |
Findings that have a high probability of being benign
(>98%); six-month short interval follow-up |
|
4 |
Suspicious Abnormality |
Not characteristic of breast cancer, but reasonable
probability of being malignant (3 to 94%); biopsy should be
considered |
|
5 |
Highly Suspicious of Malignancy |
Lesion that has a high probability of being malignant (>=
95%); take appropriate action |
|
6 |
Known Biopsy Proven Malignancy |
Lesions known to be malignant that are being imaged prior to
definitive treatment; assure that treatment is completed |
You can see that the BIRAD 4
classification refers to findings for which the radiologist feels
biopsy should be considered, even though it might not be
cancer. This designation covers a wide range of suspicious
findings, and for this reason, some radiologists will further
categorize the findings as 4a, 4b, or 4c, indicating progressively
higher suspicion. For example, if he sees a group of three tiny
calcifications, not very tightly clustered, and all rounded, he
may feel biopsy is appropriate, even though these are most likely
benign, and so may designate this as a BIRAD 4a. If he sees a
“tight” cluster of numerous tiny calcifications that are variable
in shape and size, and perhaps showing branching, he would predict
that these are much more likely to indicate cancer, and may
designate these as BIRAD 4c. In most cases, both of these
situations are going to require a biopsy, even though the level of
suspicion is quite different.
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I had an abnormal
mammogram and have been told to see a radiologist or surgeon to
have a biopsy done. What does that involve?
It is important that in addition to annual
screening mammograms after age 40, you should have an annual
breast exam by a physician who does a thorough physical exam of
your breasts. This is especially important if your mammogram is
abnormal. If you are referred for a biopsy, and no breast exam is
done beforehand, you might not have the proper biopsy method, or
there may be findings missed that would alter the recommendations
for biopsy. The surgeons at DeKalb Surgical Associates are
highly trained and skilled in the assessment of breast problems,
particularly mammogram abnormalities. In most cases of BIRAD
4 abnormalities, you would be scheduled for a stereotactic
biopsy. But if the abnormality corresponds to something the
surgeon can feel, or can see on ultrasound, a core needle biopsy
with ultrasound guidance is usually a better option, and this can
usually be done on the same day as your first visit.
A stereotactic biopsy is a clever method
designed to obtain a small but sufficient amount of tissue from
the breast for biopsy when the area of suspicion cannot be felt,
but is seen on the mammogram. It requires some sophisticated
equipment, and a skilled physician, but usually is relatively easy
for the patient. You will lie on your stomach on a special flat
table that can be raised up; your breast drops through an opening
in the table. A mammogram plate holds your breast stationary
while digital images are taken at two slightly different angles.
This allows the physician to precisely localize the abnormality in
your breast, using a computer that is hooked up to the table.
After injecting some local anesthesia in the skin of your breast,
a core needle is advanced through the skin to the target, and
several cores of tissue are removed. An x-ray of the removed
tissue will immediately confirm that the suspicious area has been
removed. The procedure usually only takes about 20 minutes, and
is usually painless after the local anesthetic injection.
In most cases, the physician will place a
small metal marking clip in the area where the biopsy was taken.
This clip is about the size of a tooth filling, and will not be
felt, will not move around, and will not set off any metal
detectors. This marker is important whether you have cancer or
not. If the biopsy shows cancer (results will usually be
available in 2-3 days), your surgeon will need to remove more
tissue from around the biopsy area. Since the original suspicious
abnormality may have been completely removed with the biopsy, the
marker will be a certain way of knowing precisely where the biopsy
was done. If you don’t have cancer, the marker will remain
permanently in your breast, documenting that the suspicious area
has been adequately biopsied.
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I was seen by a
surgeon because of an abnormal mammogram, and was scheduled to
have surgery. They are going to put a wire in my breast, and then
take me to the operating room for the biopsy. Is there a simpler
way to do the biopsy?
In most cases, the initial biopsy can be done
without placing a wire, and without having to go to the operating
room. Since most such abnormalities on mammogram are benign, it’s
usually better to do a less invasive biopsy initially, rather than
going to the operating room for a surgical biopsy. There are
exceptions to this, but the surgeon should have given a logical
explanation for why a less invasive procedure was not chosen.
If you don’t feel comfortable with the recommendation for an open
surgical (excisional) biopsy, you could always request a second
opinion.
It is almost always best to know there is
cancer present BEFORE going to the operating room. If it is
not yet determined whether there is cancer, a less invasive core
needle biopsy (either a stereotactic biopsy or ultrasound guided
biopsy) is almost always preferred.
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I had a
breast biopsy that showed some pre-cancerous cells. What should
be done now?
The term “pre-cancerous cells” might be used
for different situations. There are some benign cells that are
more heaped up and irregular than normal breast cells, which are
considered to be an indication that a woman is at higher risk for
developing a cancer. There are 2 such categories, atypical
ductal hyperplasia (ADH), and atypical lobular hyperplasia (ALH)
or lobular carcinoma in situ (LCIS). Although these findings
are not cancerous, the possibility of finding a tiny cancer nearby
is high enough to consider a larger surgical excision of
surrounding breast tissue, if these cell types are seen on a core
needle biopsy. Though estimates vary, the possibility of
finding a nearby hidden cancer in this case is probably about 10%.
I had a breast biopsy
that showed ductal carcinoma in situ (DCIS). What should be done
now?
Although no one ever wants to be told that
they have cancer, the finding of ductal carcinoma in situ (DCIS)
is one of those situations where we truly have found a cancer at a
stage where it can be nipped in the bud. The “in situ” phrase
means that we can tell for sure that these cells have the
POTENTIAL to do their cancer thing (which means, to invade into
surrounding tissue and eventually spread elsewhere), but that they
have not yet invaded even the tissue right around the DCIS cells.
When DCIS is seen on a biopsy, you will
need to have more tissue removed from your breast (usually the
additional tissue removed is about the size of an ice cream
scoop). This is almost always done as on open surgical excision
in the operating room, either with sedation or general anesthesia,
though sometimes under local anesthesia. This surgical excision
is the most important treatment, and it is necessary to remove
enough tissue so that none of the DCIS is seen along any of the
margins of the removed tissue.
This is not always as simple as it might
seem, because the DCIS can only be seen under the microscope, and
the tissue is not usually examined under the microscope until
after preserving the removed tissue in formalin overnight. This
method gives more reliable information than trying to examine the
tissue immediately (called a frozen section). This means that
there are some women in whom the margins will show some more DCIS,
and this will require another trip to the operating room to remove
more tissue. This return to the operating room is necessary
more often than you might think, as often as 50% of the time at
some centers. At DeKalb Surgical, this is only necessary about
12% of the time. I wish it would never happen, but sometimes
even the non-invasive cancer cells can extend along the breast
ducts in various directions. Obtaining clear margins is a matter
of experience, compulsion with orientation of the tissue for the
pathologist, and to some extent, how much additional breast tissue
is removed. Our technique involves the use of a customized
surgical device that is not yet available for general use, which
helps to minimize the likelihood that you would need a second
procedure.
Although surgical excision for clear
margins is the most important treatment, radiation therapy AND 5
years of hormonal therapy (with tamoxifen) is fairly standard
additional treatment, with the intention of minimizing the
possibility that you might ever develop another cancer in your
breast. Your surgeon should discuss these issues with you in more
detail. Probably the most important thing to remember if you have
DCIS is that almost all women are cured of their cancer when it is
found at this stage.
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You will need to be evaluated to decide on an
individualized treatment plan, based on the specific details of
your case. Several factors must be considered, including the type
of breast cancer (ductal is the most common subtype, and lobular
is the other, but there are even subtypes of the subtypes), your
age and menopausal status, the apparent size of the tumor, your
medical history, and any pertinent abnormalities noted on a
thorough physical exam, findings on mammogram and possibly
additional imaging studies, and some molecular characteristics of
the cancer (you might think of these as the “fingerprint” of the
cancer), primarily the estrogen receptor (ER) and HER2 status.
For some women, an additional assay called the
OncotypeDX Recurrence Score may be
ordered as well.
All these elements should be considered by
your surgeon. At DeKalb Surgical, many patients are offered a
Roundtable Consultation as soon as the diagnosis of cancer is
made. At this unique meeting, a multidisciplinary team of
doctors and our nurse navigator will all meet together with you
simultaneously, in order to come to a unified treatment plan,
customized to your specific situation, to offer you the greatest
likelihood of a cure. Since we have developed a variety of
effective weapons for breast cancer, including surgery, radiation
therapy, hormonal treatments, and chemotherapy, we want the
doctors who specialize in each of the treatment modalities to meet
and work together to recommend the best sequence of treatments.
We don’t have to use all of these modalities in every case, but it
is best to decide up front, what the best plan would be, with
input from the entire team, including you, the patient.
In some cases, it may be best to undergo
chemotherapy first, to shrink down the tumor, and then follow
with the surgery to remove any remaining cancer cells. An
advantage of this sequence is that we can see that in your
specific case, the selected chemotherapy is effective, since we
will be able to see that the cancer, if it’s palpable, actually
shrinks during treatment. In some cases, we even may see that the
chemotherapy is so effective, that when the surgery is done, ALL
the remaining cancer has disappeared. These patients have a
particularly good prognosis.
At DeKalb Surgical, we have available many
clinical trials for patients with breast cancer. Clinical
trials allow us to offer tomorrow’s breast cancer treatments
today. These trials often include newly approved drugs, which
have shown benefit in more advanced breast cancers, and now are
being tested in women with breast cancers that are more contained
(ie, a lower stage). Or they may be testing a less radical method
of giving the usual radiation therapy to the breast after
surgery. Other trials are proving that hormonal treatment (which
is much easier to tolerate compared to chemotherapy) is effective
in shrinking tumors before surgery. Not all women are candidates
for clinical trials, but studies have shown that women who
participate in clinical trials tend to have better outcomes than
those who don’t go on a trial.
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This is one of those questions that
has a very complex answer, and the answer may change over the next
few years. MRI stands for “Magnetic Resonance Imaging”,
and is a very sophisticated method of viewing anatomy in the
body. It probably first found a valuable niche in medicine for
evaluating the back part of the brain, where CAT scans sometimes
were lacking in the desired detail. As time has passed, MRI has
been applied to virtually all body parts, and now has many daily
uses, particularly in evaluating joints and other musculoskeletal
abnormalities, particularly the spine, and the pelvis and back
part of the abdomen. The breast has been evaluated with MRI as
well, and no doubt will continue to have important applications.
But doctors are not yet agreed as to how best to utilize MRI for
breast problems.
The benefit of MRI in breast problems
is its extremely high sensitivity, which means that it can
show a very high level of detail, and some hidden cancers (a very
small percentage) will not be seen with any other imaging study.
The down side of MRI has to do with its relatively low
specificity, meaning that not everything it “sees” is bad.
With screening mammograms, less than 10% of
women will have abnormalities that require more evaluation, and of
all the women who have a cancer hiding somewhere in their breast,
about 95% of them will be in that small 10% group. So
mammography does a very good job of sorting out which women have
silent cancers, but it does not find 100% of the cancers. With
mammography, we find 1 cancer out of about every 5-6 women for
whom we recommend a biopsy.
With MRI, about 25% of women will have
abnormalities that require more evaluation, and in many cases,
there will be two, three, or even more abnormalities that might
require a biopsy. Of all women with a cancer hiding in their
breast, about 98% will be in that group of 25%. But you can
easily see that the number of women undergoing biopsies is 2½
times that required based on the mammograms. There are a few more
cancers found, but it is hard to decide whether it’s worth the
cost, inconvenience, and anxiety for all the women who don’t have
cancer, who now are undergoing biopsies.
At DeKalb Surgical, MRI is used in
selected cases, primarily in women who are already diagnosed with
breast cancer. In addition, women who have a distinctly
higher breast cancer risk, due to strong family history (eg,
either a documented carrier of one of the BRCA genes, or two
immediate family members with breast cancer, etc.), may be
screened with MRI. In cases where the likelihood of developing a
cancer is extremely high, the use of MRI, even with its low
specificity, makes more sense.
As I said above, the role of MRI is evolving,
so our use of MRI may also change as time goes on, and as more
data is published about the specific situations which may benefit
from its use.
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BREAST CYSTS
My doctor says I just have a cyst in my
breast? What causes cysts? Should I have it
removed? Should it be drained with a needle? Will it
come back?
Breast cysts are very common. They are
frequently quite large, and often a bit tender. They may
seem to have popped up overnight, as a very large lump, the size
of a grape or larger. Although we don't know why they occur
specifically, it seems they develop as a response to the normal
hormone variations that occur through the monthly menstrual
cycle. Sometimes they will go away on their own as quickly
as they come, but often they remain for some time.
Cysts can be classified as "simple" or
"complex". An ultrasound is especially helpful in
evaluating cysts; in fact, if a lump has all the characteristics
of a simple cyst on ultrasound, it can be safely "left
alone". But when it can be clearly felt, and doesn't go
away, it may be best to drain it with a needle. This is
simple to do, and it can relieve any tenderness. What's
more, there is nothing more reassuring about a new lump in your
breast than to make it disappear!
Cysts can come back, but most do not. Some women
tend to develop new cysts over and over, and some women develop so
many cysts that it seems impossible to try to drain all of
them. This situation is challenging, because it makes it
hard to decide if there may be a "new" lump hiding in
the background of all the cysts. In such cases, it may be
best to plan to have your breasts checked by a physician more
frequently, perhaps every 3-6 months. Though this is no
guarantee of finding any beast cancer early, it should help.
Having lots of cysts does not appear to increase your chances of
having breast cancer; it just makes it harder to check.
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I had a cyst drained, and the fluid
looked green. Should the fluid be tested for cancer?
In years past, doctors routinely sent cyst fluid
to be analyzed for cancer. But it turns out that the
information obtained is not really helpful in deciding what to do,
so most doctors have stopped doing this routinely. There may
still be situations in which cyst fluid analysis is helpful.
This may include cases in which the fluid is crystal clear,
bloody, in cases where the cyst looks unusual on ultrasound, or in
a patient who has an especially high risk of cancer.
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My teenage daughter found a
lump in her breast. What should we do?
It is very rare for lumps in teenagers to be
cancer, but it should still be checked out by a physician. In
most cases, it is a benign growth called a fibroadenoma, which is
not cancer, and except for rare cases, will not turn into
cancer. If left alone, they usually will eventually go away
(regress), but this process may take years.
Fibroadenomas usually have very typical features on
ultrasound, and they have a very typical rubbery feel, and can be
"pushed around" in the breast tissue very easily, so
your physician may be quite certain that your lump is a
fibroadenoma even without a biopsy. But, a biopsy is very
simple to do, using a "fine needle" or a "core
biopsy", so if you or your doctor have any anxiety about it,
a biopsy or excision should definitely be done.
Sometimes it may make more sense to just remove the lump rather
than do a biopsy. A lump brings with it a certain
amount of anxiety even if a biopsy is "benign". If
you feel that leaving the lump in would cause you too much
anxiety, even if benign, then you and your doctor may want to skip
the biopsy and just remove it.
There is no one in my family who has had breast
cancer, so my chances of getting breast cancer are very low aren't
they?
Don't assume that you won't get breast cancer just
because it doesn't run in your family! Most breast cancers
are not inherited, meaning that any female is at
risk. If you have a lump in your breast, or if you have a
suspicious finding on your mammogram, it must be evaluated
carefully, regardless of whether cancer runs in your family.
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I have some drainage from my
nipple. Is that normal?
There are different types of nipple discharge,
some of which are of little concern, and others which are
suspicious. Many women may see a little milky, or slightly
greenish discharge from the nipples at times. It might be
seen when the breast is massaged or the nipple is squeezed or
stimulated, and may be seen from more than one of the ducts on the
nipple. This type of discharge is considered
normal. If you notice tis type of drainage from your
nipples when you squeeze them, it's probably best to just stop
squeezing them.
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My mother had breast
cancer. Does that mean I will get breast cancer?
If someone in your immediate family has been
diagnosed with breast cancer, then your risk of developing breast
cancer is increased by about a factor of 2. If there are
more than one with breast cancer in your family, your risk goes up
further, especially if the cancers occurred at a young age
(younger than 40).
Although most breast cancers are not primarily due to
genetic factors (related to family history), there is a group of
women who carry a gene that carries with it an extremely high risk
for developing both breast and ovarian cancer. These genes
are called the BRCA1 and BRCA2 genes. These gene mutations
can be identified by a blood test, but the cost is over $2000
currently. Most women do not need to have this test
done. But it is usually recommended for women who have two
or more young family members with breast cancer, or if there is
also a family history of ovarian cancer. Each patient
considered for the test must be counseled about what the test
involves, and what ae the implications of the test results.
If you want more information, please contact our office. The
genetic testing and counseling is available through the Kann
Cancer Center at DeKalb Medical Center.
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Is there anything I can do to prevent
getting breast cancer?
We do know something about risk factors for breast
cancer. Breast cancer incidence is higher in patients who
are overweight, those who drink moderate to high amounts of
alcohol daily, and those who consume a diet high in saturated
fats. There is also a higher incidence in those who have
early onset of menstruation, those who have no full-term
pregnancies until late in life, or those who never have any
pregnancies. Also, for those with children, breast feeding
appears to decrease the incidence of breast cancer.
Most women will not want to base their family planning on
decreasing their cancer risk, but it's at least helpful to
understand these potential implications. But some basic
preventive life styles make sense for most everyone, namely,
avoiding saturated fats as much as possible, abstaining from
alcohol, and maintaining an ideal body weight. Other good
life style measures in general include complete abstinence form
tobacco products, a diet high in fiber, and a regular exercise
program.
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How can I determine how high my risk of
breast cancer is?
We can give an estimate of a woman's risk of
developing breast cancer based on several factors such as family
history, prior breast biopsy results, age at onset of menstrual
periods, etc. One popular "model" for quantifying
this risk is called the Gail model. By "plugging
in" all the pertinent information, a calculation of the
5-year and lifetime risk can be made. For the "no
risk" women, her 5 year risk would be about 1%, meaning that
if there were 1000 women with no risk factors, in five years,
approximately 10 of them would have developed breast
cancer. A woman who has one or more risk factors, such as
family history, no pregnancies, etc, her 5 year risk may be 1.5%,
or 2.5% or higher. This would mean that in a group of 1000
women with all those same risk factors, 15 or 20 would develop
cancer over the next five years.
You may want to look at a similar
risk calculation tool
at the National Cancer Institute website, where you can do
your own calculation.
Lifetime risk for a woman with no risk factors would be
in the range of 10%, meaning that 100 of 1000 similar women would
develop breast cancer sometime during their lifetime. For
women with one or more risk factors, their lifetime risk may be
15% or perhaps as high as 50%.
If my risk of developing breast cancer
is high as calculated by the Gail model or other risk assessment
tool, is there anything I can
do about it?
In 1998, a landmark study was published regarding
the use of tamoxifen in the prevention of breast cancer. About 13,000 women were enrolled in this
five year trial, comparing tamoxifen to a placebo (sugar
pill). The incidence of breast cancer development over about
five years was decreased by about 50%. In the placebo group,
about 20 out of 1000 women developed cancer, whereas only about 10
out of 1000 women developed cancer in the tamoxifen group.
These results are dramatic, in that this the first ever drug study
to demonstrate the ability to prevent breast cancer from
developing in the first place.
If a women chooses to take tamoxifen for prevention, it
must be taken for a total of five years. One must be aware
that there are some potential undesirable side effects.
There were a few more cases of endometrial cancer when taking
tamoxifen, and there were more women with blood clot
problems. And there may be side effects of hot flashes,
vaginal discharge, cataract formation, and depression. But
for some women the benefits may clearly outweigh the risks.
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I have heard that Evista (raloxifene)
can also decrease my risk of getting breast cancer. Is this
true?
Raloxifene is a drug that was initially approved for
the prevention of osteoporosis. In the study which was
conducted to look at its effect in osteoporosis, it was noted
incidentally that there were fewer women diagnosed with breast
cancer when taking raloxifene.
On the basis of these findings, a large trial
was conducted a few years ago, including almost 20,000 women,
which compared the use of Evista (raloxifene) to tamoxifen for the
prevention of breast cancer in women who were at higher than
average risk for developing breast cancer. This was called the
STAR trial (Study of Tamoxifen and Raloxifene). The
results were published in 2006, and showed that Evista also
decreased the incidence of breast cancer over a 5 year period. It
is important to understand the size of the benefit. These women
had an average estimated risk of about 4% for developing breast
cancer over the next 5 years. This means that out of 100 women in
the trial, only 4 would be expected to be diagnosed with cancer in
5 years. But in the general population only 1 or 2 out of 100
will develop cancer in 5 years, so the risk is double or more.
Now in the study, with 5 years of either tamoxifen or Evista
(raloxifene), only about 2 out of 100 women were diagnosed with
breast cancer over 5 years, so the drugs both decreased the
incidence of cancer by half. While this is really good, the
benefit is limited to only 1 or 2 women out of 100 who take it, at
least over the first 5 years. It seems that the higher one’s risk
is, the more attractive these drugs become as preventive
treatment. You can find more information at the
National Cancer Institute website about this trial.
Another informative NCI site can be viewed
here.
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New Test Predicts
Response to Chemotherapy for Women with Early Breast Cancer.
The
diagnosis of breast cancer is a very frightening event for any
woman. It is accompanied by many fears and anxieties, especially
anxieties about the need for chemotherapy, and the fear that the
cancer will come back. These concerns arise for many women
despite that fact that cancer is most often diagnosed in its early
stages, when the risk for recurrent disease is fairly low.
A new
test is available that will help women and their doctors in
predicting their risk for recurrence, and to determine if their
cancer would respond to chemotherapy.
The new test,
called the OncotypeDX test, is performed on tissue from the
initial biopsy or lumpectomy specimen. It uses the unique
genetic profile of each woman’s breast cancer to make an
accurate prediction about whether the cancer will recur. It
measures an array of genes that are known to be associated with
more aggressive tumors. The test has been shown to be much more
powerful than current predictive methods, which are based on
“clinical staging”, which is based on the size of the tumor and
the status of the lymph nodes.
This OncotypeDX
test has been studied in a large group of women who had
participated in two large national breast cancer clinical trials
through the National Surgical Adjuvant Breast and Bowel Project (NSABP)
several years ago. All of these women had early stage breast
cancer at diagnosis, and all were treated in a similar fashion,
with tamoxifen. The OncotypeDX test was performed on the initial
tissue specimens for all these women. The women were then grouped
according to the OncotypeDX test results.
All women had been followed for at least 10 years, so it
was known who had recurrent cancer.
For the group as
a whole, there were 15% who had recurrence within the first ten
years after diagnosis. Using the OncotypeDX test, this group
could be split into 3 sub-groups, one whose recurrence risk was
extremely low, at 7%, a second group with an intermediate risk,
and a third group whose recurrence risk was quite high, at 31%,
despite being classified as “early stage” by our current
criteria. About half of the women were in the low recurrence risk
group. The researchers concluded that the test is highly
prognostic for this group of breast cancer patients,
independent of treatment.
The test was
also studied to see if it could predict who would benefit
from receiving chemotherapy. Currently, many women with early
stage breast cancer are advised to receive chemotherapy, in a “one
size fits all” fashion, even though only a very small number are
actually going to benefit. Based on current clinical staging,
there is no simple way to decide which women would not
benefit from chemotherapy. In other words, we overtreat many
women with chemotherapy, for lack of being able to distinguish
which women will actually benefit.
Using the
OncotypeDX test, 50% of the women, all with a low Recurrence
Score, had no benefit from receiving chemotherapy. Stated
another way, if the Recurrence Score is low, the risk of
recurrence is extremely low, and receiving chemotherapy makes no
difference in the outcome. On the other hand, in the remaining
50% of women with an intermediate or high recurrence score, there
a much more dramatic benefit from receiving chemotherapy,
especially with a high Recurrence Score. Incorporation of this
test into the decision process allows the doctor to individualize
treatment based on the “fingerprint” of the patient’s cancer.
Approximately 50% of women with early breast cancer can thus avoid
the toxicity that comes with receiving chemotherapy.
This exciting new study was reported at the
annual San Antonio Breast Cancer Symposium held in December 2004
and subsequently published in the New England Journal of
Medicine. The test currently is only indicated for patients with
breast cancer that has not spread to the lymph nodes, and also is
“positive” for estrogen receptors. The test is available for
women at DeKalb Medical Center. Most insurance companies
cover the cost of the test. It is expected that in the near future the test will be
validated in women with more advanced breast cancer, potentially
sparing additional women the toxicity of chemotherapy. There is
already data showing that OncotypeDX is predictive of the benefit
of chemotherapy even in women with positive lymph nodes, but its
use in this setting is not yet considered appropriate outside of
research settings. Use of the test may also eventually accelerate our ability to identify
unique molecular targets in breast cancer, allowing for even
greater precision and individualization in treatment planning.
As
the use of this test has expanded, there has been a need to decide
how best to treat those women who fall into the “Intermediate”
Recurrence Score group. Currently, most oncologists would
recommend chemotherapy for many of these patients, though the data
so far appears to show no real difference in outcomes for women
whether they have chemotherapy or not. There is a large national
clinical trial underway to study this further. It is called the
TAILORx trial (Trial Assigning IndividuaLized
Options for Treatment (Rx)). In this trial, women
with a low Recurrence Score are treated with hormonal therapy
only, and women with a high Recurrence Score are treated with
chemotherapy followed by hormonal therapy. Patients with an
Intermediate Recurrence Score are randomized either to receive
hormonal therapy alone, or combined with chemotherapy. You can
get more information about this trial from the surgeons at DeKalb
Surgical, or you may visit this
NCI website for more details.
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