Breast Cancer Screenings: What’s New and What’s Best?



Breast cancer

screening guidelines vary with each person. You might wonder why your doctor chooses certain ones over others.




In the WebMD webinar “
Breast Cancer Screenings: What’s New and What’s Best?”
Julia E. McGuinness, MD, discussed the most recent breast cancer screenings. She explained the guidelines and why they should be tailored to each person.


McGuinness is an assistant professor of medicine at the Columbia University Herbert Irving Comprehensive Cancer Center. She specializes in caring for people who have breast cancer and those at high risk of developing it.


“One of the most important things is to learn about your own breast cancer risk factors and your breast density,” she says. “Those things help us determine the best way to screen you for breast cancer. It’ll also empower you to have that discussion with your doctor about what your risk for breast cancer is.”


Poll Questions


It can be tricky deciding which 

breast cancer screening option

is best for you. There are different reasons you may need to follow a certain protocol. McGuinness explained how to choose the best screening for you.


A poll of webinar viewers found 46% help manage their breast cancer risk by talking with their doctor about screening options.



Question: I do this to help choose the best breast cancer screening for me:


  • Talk with my doctor about which guidelines fit me best: 46%

  • Know my risk factors for breast cancer: 29%

  • Know my breast density: 18%

  • Consider my own screening preferences: 7%


Why Is Breast Cancer Screening Necessary?


“Breast cancer is still the most common cancer in women. We estimate that about 1 in 8 women will be diagnosed with breast cancer in their lifetimes,” says McGuinness. “This is why screening is so important. The goal of breast cancer screening applies to any cancer screening: find cancer early.”


Breast cancer screening can:


  • Find cancer before you have symptoms 

  • Boost your chances of a cure 

  • Lower the cost of treatment

  • Allow for treatments that have fewer side effects


Breast Cancer Screenings Aren’t One-Size-Fits-All


There are a few types of breast cancer screening options:


  • Screening mammograms

  • 3D mammograms or digital breast tomosynthesis

  • Breast ultrasound

  • Breast MRI


Continued


Most women should have a
mammogram
every 1-2 years. But if you’re at high risk for breast cancer (which includes having 

dense breast tissue

), consider having extra breast imaging done. This includes a breast ultrasound or breast MRI.


“Talk with your doctor about the best screening options for you based on your risk and the rest of your medical history,” says McGuinness. “But don’t forget to consider your own preferences. You have a voice in how you want to be screened. There’s not just one recommended way to screen for breast cancer.”


Viewer Questions



How can you manage claustrophobia during mammograms?



Can mammograms cause costochondritis?



If you have dense breasts and yearly sonograms, why do you need mammograms?


We deal with
claustrophobia
a lot during breast MRIs. One thing that we use in those situations, because they’re longer exams, are medications to help with claustrophobia.


For mammograms, it’s trickier because they’re shorter exams and they’re more commonly done. We don’t necessarily want to give everyone anxiety medication for each exam. 


Talk with the mammogram technicians or your doctor about what the process is going to look like. That way, you know exactly what you’re going into when you get there. There are different ways that the techs can minimize your pain or discomfort.


Costochondritis
is inflammation in your ribs or the tissues next to your ribs. It can cause chest pain, especially if you’re moving or taking a deep breath. Your breasts are directly over your ribcage. If you’re being squeezed into a mammographic machine, you could be touched by the machine near your ribs.


It’s not common, but every person’s body is different. Some people who are thin and don’t have a lot of excess padding, or fat, to protect them might have a little bit of pain.


If this happens, tell your doctor and the tech next time so they can adjust things.


If you have dense breasts and have sonograms yearly, you still need mammograms. Ultrasounds or sonograms of the breast aren’t very good at detecting breast cancer on their own. Mammograms are more effective at detecting cancer. We never recommend ultrasounds alone.


Continued



Which screenings are best for those at high risk of breast cancer but allergic to MRI contrast dyes?



How do breast screenings apply to people who are transgender?



How do breast implants and breast reduction surgery affect effectiveness and recommendations of breast cancer screenings?


We’d never have a person with such an allergy go through an MRI for screening. If there’s no alternative, we give them medication to help the allergy (if it’s not severe) so they can still go through it. But for screening purposes, we wouldn’t put anyone at risk in that situation. In this case, your alternatives are mammograms and ultrasounds. We’d do a combination, since you can’t get the MRI.


In the future, CAT scans for breast screening might be an option.


There are no specific guidelines in breast cancer screening for
transgender people. For trans men who still have intact breast tissue, they should still continue screening.


On the flip side, it’s a little harder for us to figure out what to do for trans women. They’re receiving a lot of female hormones, like estrogen, which theoretically could boost their risk of breast cancer. But we don’t have good guidelines on what to do yet, since they don’t have the same degree of breast tissue as cisgender women. 


Talk with your doctors. Generally, we suggest that if you were assigned female at birth and have transitioned, you should continue mammograms unless you’ve had bilateral mastectomies where there’s no breast tissue left.


We also recommend women who had breast augmentation surgery (either implants or breast reduction surgery) get annual mammograms.


Having such surgery can leave scar tissue, and that can make it harder for radiologists to fully read your mammograms. We certainly don’t tell people not to get these surgeries for that reason. But you might end up having more false positive results.


There are no guidelines saying that everyone who had these surgeries should get breast MRIs. But those can take a better look at your remaining breast tissue or the breast tissue that’s been pushed up by an implant.


Continued


Make sure you talk with your surgeon and your primary doctors, continue breast cancer screening, and be aware that you might get a lot more false positives.



At what age can someone with normal mammograms and no family history of breast cancer safely stop having mammograms?



Is there a connection between osteoporosis and breast cancer in postmenopausal women?



Do women who’ve never given birth have a higher risk of breast cancer?


With mammograms, it’s all a risk-benefit analysis. The guidelines say age 75. But if people are healthy and living longer, they can continue mammograms after that.


If you’re sick with other medical conditions – like something that’s going to shorten your life span and you’re going through a lot of other treatments — we often stop screening mammograms. Because the likelihood that breast cancer will become a danger to your health is less likely than another medical condition doing so. It’s a tricky balance. Talk to your doctor about what’s right for your specific situation.


Osteoporosis
in postmenopausal people happens because, after menopause, your estrogen levels drop when your ovaries stop producing it. Estrogen supports bone health. But there’s no direct link between osteoporosis and breast cancer risk. 


If you have osteoporosis and have lower estrogen, it doesn’t mean your risk of breast cancer is lower or vice versa.


However, never having children, or having your first child after the age of 30, is a
risk factor
for breast cancer. The reason is that when you go through pregnancy, your body has a break in the typical cycle of estrogen production you have every month when you’re getting a period.


So having that 9-month break in typical estrogen production is what lowers your risk for developing breast cancer. If you have a pregnancy at an earlier age, like in your 20s or even in your teens, that earlier break means you might improve your breast cancer risk. 


We shouldn’t make decisions about children based on our breast cancer risk. But we can incorporate that into our risk calculations. It’s not a large risk factor for breast cancer. But if you have other major risk factors, this small factor can be what bumps you into the high-risk category where you would actually need to be screened differently.




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Breast density changes over time could be linked to breast cancer risk, study finds | CNN



CNN
 — 

Breast density is known to naturally decrease as a woman ages, and now a study suggests that the more time it takes for breast density to decline, the more likely it is that the woman could develop breast cancer.

Researchers have long known that women with dense breasts have a higher risk of breast cancer. But according to the study, published last week in the journal JAMA Oncology, the rate of breast density changes over time also appears to be associated with the risk of cancer being diagnosed in that breast.

“We know that invasive breast cancer is rarely diagnosed simultaneously in both breasts, thus it is not a surprise that we have observed a much slower decline in the breast that eventually developed breast cancer compared to the natural decline in density with age,” Shu Jiang, an associate professor of surgery at Washington University School of Medicine in St. Louis and first author of the new study, wrote in an email.

Breast density refers to the amount of fibrous and glandular tissue in a person’s breasts compared with the amount of fatty tissue in the breasts – and breast density can be seen on a mammogram.

“Because women have their mammograms taken annually or biennially, the change of breast density over time is naturally available,” Jiang said in the email. “We should make full use of this dynamic information to better inform risk stratification and guide more individualized screening and prevention approaches.”

The researchers, from Washington University School of Medicine in St. Louis and Brigham and Women’s Hospital in Boston, analyzed health data over the course of 10 years among 947 women in the St. Louis region who completed routine mammograms. A mammogram is an X-ray picture of the breast that doctors use to look for early signs of breast cancer.

The women in the study were recruited from November 2008 to April 2012, and they had gotten mammograms through October 2020. The average age of the participants was around 57.

Among the women, there were 289 cases of breast cancer diagnosed, and the researchers found that breast density was higher at the start of the study for the women who later developed breast cancer compared with those who remained cancer-free.

The researchers also found that there was a significant decrease in breast density among all the women over the course of 10 years, regardless of whether they later developed breast cancer, but the rate of density decreasing over time was significantly slower among breasts in which cancer was later diagnosed.

“This study found that evaluating longitudinal changes in breast density from digital mammograms may offer an additional tool for assessing risk of breast cancer and subsequent risk reduction strategies,” the researchers wrote.

Not only is breast density a known risk factor for breast cancer, dense breast tissue can make mammograms more difficult to read.

“There are two issues here. First, breast density can make it more difficult to fully ‘see through’ the breast on a mammogram, like looking through a frosted glass. Thus, it can be harder to detect a breast cancer,” Dr. Hal Burstein, clinical investigator in the Breast Oncology Center at Dana-Farber Cancer Institute, who was not involved in the new study, said in an email. “Secondly, breast density is often thought to reflect the estrogen exposure or estrogen levels in women, and the greater the estrogen exposure, the greater the risk of developing breast cancer.”

In March, the US Food and Drug Administration published updates to its mammography regulations, requiring mammography facilities to notify patients about the density of their breasts.

“Breast density can have a masking effect on mammography, where it can be more difficult to find a breast cancer within an area of dense breast tissue,” Jiang wrote in her email.

“Even when you take away the issue of finding it, breast density is an independent risk factor for developing breast cancer. Although there is lots of data that tell us dense breast tissue is a risk factor, the reason for this is not clear,” she said. “It may be that development of dense tissue and cancer are related to the same biological processes or hormonal influences.”

The findings of the new study demonstrate that breast density serves as a risk factor for breast cancer – but women should be aware of their other risk factors too, said Dr. Maxine Jochelson, chief of the breast imaging service at Memorial Sloan Kettering Cancer Center in New York, who was not involved in the study.

“It makes sense to some extent that the longer your breast stays dense, theoretically, the more likely it is to develop cancer. And so basically, it expands on the data that dense breasts are a risk,” Jochelson said, adding that women with dense breasts should ask for supplemental imaging when they get mammograms.

But other factors that can raise the risk of breast cancer include having a family history of cancer, drinking too much alcohol, having a high-risk lesion biopsied from the breast or having a certain genetic mutation.

For instance, women should know that “density may not affect their risk so much if they have the breast cancer BRCA 1 or 2 mutation because their risk is so high that it may not make it much higher,” Jochelson said.

Some ways to reduce the risk of breast cancer include keeping a healthy weight, being physically active, drinking alcohol in moderation or not at all and, for some people, taking medications such as tamoxifen and breastfeeding your children, if possible.

“Breast density is a modest risk factor. The ‘average’ woman in the US has a 1 in 8 lifetime chance of developing breast cancer. Women with dense breasts have a slightly greater risk, about 1 in 6, or 1 in 7. So the lifetime risk goes up from 12% to 15%. That still means that most women with dense breasts will not develop breast cancer,” Burstein said in his email.

“Sometimes radiologists will recommend additional breast imaging to women with dense breast tissue on mammograms,” he added.

The US Preventive Services Task Force – a group of independent medical experts whose recommendations help guide doctors’ decisions – recommends biennial screening for women starting at age 50. The task force says that a decision to start screening earlier “should be an individual one.” Many medical groups, including the American Cancer Society and Mayo Clinic, emphasize that women have the option to start screening with a mammogram every year starting at age 40.

“It’s also very clear that breast density tends to be highest in younger women, premenopausal women, and for almost all women, it tends to go down with age. However, the risk of breast cancer goes up with age. So these two things are a little bit at odds with each other,” said Dr. Freya Schnabel, director of breast surgery at NYU Langone’s Perlmutter Cancer Center and professor of surgery at NYU Grossman School of Medicine in New York, who was not involved in the new study.

“So if you’re a 40-year-old woman and your breasts are dense, you could think about that as just being really kind of age-appropriate,” she said. “The take-home message that’s very, very practical and pragmatic right now is that if you have dense breasts, whatever your age is, even if you’re postmenopausal – maybe even specifically, if you are postmenopausal – and your breasts are not getting less dense the way the average woman’s does, that it really is a reason to seek out adjunctive imaging in addition to just mammography, to use additional diagnostic tools, like ultrasound or maybe even MRI, if there are other risk factors.”

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New study suggests Black women should be screened earlier for breast cancer | CNN



CNN
 — 

A new study on breast cancer deaths raises questions around whether Black women should screen at earlier ages.

An international team of researchers wrote in the study, published Wednesday in the journal JAMA Network Open, that clinical trials may be warranted to investigate whether screening guidelines should recommend Black women start screening at younger ages, around 42 instead of 50.

The US Preventive Services Task Force – a group of independent medical experts whose recommendations help guide doctors’ decisions – recommends biennial screening for women starting at age 50. The Task Force says that a decision to start screening prior to 50 “should be an individual one.” Many medical groups, including the American Cancer Society and Mayo Clinic, already emphasize that women have the option to start screening with a mammogram every year starting at age 40.

Even though Black women have a 4% lower incidence rate of breast cancer than White women, they have a 40% higher breast cancer death rate.

“The take-home message for US clinicians and health policy makers is simple. Clinicians and radiologists should consider race and ethnicity when determining the age at which breast cancer screening should begin,” Dr. Mahdi Fallah, an author of the new study and leader of Risk Adapted Cancer Prevention Group at the German Cancer Research Center in Heidelberg, Germany, said in an email.

“Also, health policy makers can consider a risk-adapted approach to breast cancer screening to address racial disparities in breast cancer mortality, especially the mortality before the recommended age of population screening,” said Fallah, who is also a visiting professor at Lund University in Sweden and an adjunct professor at the University of Bern in Switzerland.

Breast cancer screenings are typically performed using a mammogram, which is an X-ray picture taken of the breast that doctors examine to look for early signs of breast cancer developing.

“Guidelines for screening actually already do recommend basing a woman’s time to initiate screening on the risk of developing cancer, though race and ethnicity have not been traditional factors that go into these decisions,” Dr. Rachel Freedman, a breast oncologist at Dana-Farber Cancer Institute, who was not involved in the new study, said in an email.

The American Cancer Society currently recommends that all women consider mammogram screenings for breast cancer risk starting at the age of 40 – and for women 45 to 54, it’s recommended to get mammograms every year. Those 55 and older can switch to screening every other year if they choose.

But “we are in the process of updating our breast cancer screening guidelines, and we are examining the scientific literature for how screening guidelines could differ for women in different racial and ethnic groups, and by other risk factors, in a way that would reduce disparities based on risk and disparities in outcome,” Robert Smith, senior vice president for cancer screening at the American Cancer Society, who was not involved in the new study, said in an email. “We are examining these issues closely.”

The American Cancer Society’s recommendations appear to align with the findings in the new study, as the research highlights how screening guidelines should not be a “one-size-fits-all policy,” but rather help guide conversations that patients and their doctors have together.

“We, here at the American Cancer Society, strongly recommend that all women consider a screening mammogram from the age of 40 onwards, and that means having a discussion with their doctor,” said Dr. Arif Kamal, the American Cancer Society’s chief patient officer, who was not involved in the new study.

“The authors highlight that age 50 can be a little late,” Kamal said about the study’s findings on when to begin breast cancer screening. “We are in agreement with that, particularly for women who may be at slightly higher risk.”

The researchers – from China, Germany, Sweden, Switzerland and Norway – analyzed data on 415,277 women in the United States who died of breast cancer in 2011 to 2020. That data on invasive breast cancer mortality rates came from the National Center for Health Statistics and was analyzed with the National Cancer Institute’s SEER statistical software.

When the researchers examined the data by race, ethnicity and age, they found that the rate of breast cancer deaths among women in their 40s was 27 deaths per 100,000 person-years for Black women compared with 15 deaths per 100,000 in White women and 11 deaths per 100,000 in American Indian, Alaska Native, Hispanic and Asian or Pacific Islander women.

“When the breast cancer mortality rate for Black women in their 40s is 27 deaths per 100,000 person-years, this means 27 out of every 100,000 Black women aged 40-49 in the US die of breast cancer during one year of follow-up. In other words, 0.027% of Black women aged 40-49 die of breast cancer each year,” Fallah said in the email.

In general, for women in the United States, their average risk of dying from breast cancer in the decade after they turn 50, from age 50 to 59, is 0.329%, according to the study.

“However, this risk level is reached at different ages for women from different racial/ethnic groups,” Fallah said. “Black women tend to reach this risk level of 0.329% earlier, at age 42. White women tend to reach it at age 51, American Indian or Alaska Native and Hispanic women at age 57 years, and Asian or Pacific Islander women later, at age 61.”

So, the researchers determined that when recommending breast cancer screening at age 50 for women, Black women should start at age 42.

Yet “the authors didn’t have any information on whether the women included in this study actually had mammographic screening and at what age. For example, it is possible that many women in this study actually had screening during ages 40-49,” Freedman, of the Dana-Farber Cancer Institute, said in her email.

“This study confirms that the age of breast cancer-mortality is younger for Black women, but it doesn’t confirm why and if screening is even the main reason. We have no information about the types of cancers women developed and what treatment they had either, both of which impact mortality from breast cancer,” she said.

The harm of starting mammograms at a younger age is that it raises the risk of a false positive screening result – leading to unnecessary subsequent tests and emotional stress.

But the researchers wrote in their study that “the added risk of false positives from earlier screenings may be balanced by the benefits” linked with earlier breast cancer detection.

They also wrote that health policy makers should pursue equity, not just equality, when it comes to breast cancer screening as a tool to help reduce breast cancer death rates.

Equality in the context of breast cancer screening “means that everyone is screened from the same age regardless of risk level. On the other hand, equity or risk-adapted screening means that everyone is provided screening according to their individual risk level,” the researchers wrote. “We believe that a fair and risk-adapted screening program may also be associated with optimized resource allocation.”

The new study is “timely and relevant,” given the overall higher mortality rate for breast cancer in Black women and that Black women are more likely to be diagnosed at a younger age compared with other ethnic groups, Dr. Kathie-Ann Joseph, surgical oncologist at NYU Langone’s Perlmutter Cancer Center and professor of surgery and population health at the NYU Grossman School of Medicine, said in an email.

“While some may argue that earlier screening may lead to increased recalls and unnecessary biopsies, women get recalled for additional imaging about 10% of the time and biopsies are needed in 1-2% of cases, which is quite low,” said Joseph, who was not involved in the new study.

“This has to be compared to the lives saved from earlier screening mammography,” she said. “I would also like to point out that while we certainly want to prevent deaths, earlier screening can have other benefits by allowing women of all racial and ethnic groups to have less extensive surgery and less chemotherapy which impacts quality of life.”

Breast cancer is the most common cancer among women in the United States, except for skin cancers. This year, it is estimated that about 43,700 women will die from the disease, according to the American Cancer Society, and Black women have the highest death rate from breast cancer.

Even though Black women are 40% more likely than White women to die from the disease, Kamal of the American Cancer Society said that the disparity in deaths is not a result of Black women not following the current mammogram guidelines.

Rather, implicit bias in medicine plays a role.

“In the United States, across the country, there are not differences in mammogram screening rates among Black women and White women. In fact, across the entire country, the number is about 75%. We see about 3 in 4 women – Black, White, Hispanic, and Asian – are on time with their mammograms,” Kamal said.

Yet there are multiple timepoints after a patient is diagnosed with breast cancer where they may not receive the same quality of care or access to care as their peers.

“For example, Black women are less likely to be offered enrollment in a clinical trial. That is not because of a stated difference in interest. In fact, the enrollment rate in clinical trials is equal among Black women and White women, if they’re asked,” Kamal said.

“What we have to understand is where the implicit and systemic biases held by patients and their caregivers and their families may exist – those that are held within health systems and even policies and practices that impede everyone having fair and just access to high quality health care,” he said.

Additionally, Black women have nearly a three-fold increased risk of triple-negative breast cancers. Those particular type of cancers tend to be more common in women younger than 40, grow faster than other types of invasive breast cancer and have fewer treatment options.

Black women also tend to have denser breast tissue than White women. Having dense tissue in the breast can make it more difficult for radiologists to identify breast cancer on a mammogram, and women with dense breast tissue have a higher risk of breast cancer.

But such biological differences among women represent just a small part of a much larger discussion around racial disparities in breast cancer, Kamal said.

“There are systemic issues, access to care issues that really go beyond biology,” he said. “The reality is cancer affects everybody and it does not discriminate. Where the discrimination sometimes occurs is after the diagnosis, and that’s really what we need to focus on.”

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Many women underestimate breast density as a risk factor for breast cancer, study shows | CNN



CNN
 — 

Dense breast tissue has been associated with up to a four times higher risk of breast cancer. However, a new study suggests few women view breast density as a significant risk factor.

The study, published in JAMA Network Open, surveyed 1,858 women ages 40 to 76 years from 2019 to 2020 who reported having recently undergone mammography, had no history of breast cancer and had heard of breast density.

Women were asked to compare the risk of breast density to five other breast cancer risk factors: having a first-degree relative with breast cancer, being overweight or obese, drinking more than one alcoholic beverage per day, never having children and having a prior breast biopsy.

“When compared to other known and perhaps more well-known breast cancer risks, women did not perceive breast density as significant of a risk,” said Laura Beidler, an author of the study and researcher at the Dartmouth Institute for Health Policy and Clinical Practice.

For example, the authors report that dense breast tissue is associated with a 1.2 to four times higher risk of breast cancer compared with a two times higher risk associated with having a first-degree relative with breast cancer – but 93% of women said breast density was a lesser risk.

Dense breasts tissue refers to breasts that are composed of more glandular and fibrous tissue than fatty tissue. It is a normal and common finding present in about half of women undergoing mammograms.

The researchers also interviewed 61 participants who reported being notified of their breast density and asked what they thought contributes to breast cancer and how they could reduce their risk. While most women correctly noted that breast density could mask tumors on mammograms, few women felt that breast density could be a risk factor for breast cancer.

Roughly one-third of women thought there was nothing they could do to reduce their breast cancer risk, although there are several ways to reduce risk, including maintaining a healthy, active lifestyle and minimizing alcohol consumption.

Breast density changes over a woman’s lifetime, and is generally higher in women who are younger, have a lower body weight, are pregnant or breastfeeding, or are taking hormone replacement therapy.

The level of breast cancer risk increases with the degree of breast density; however, experts aren’t certain why this is true.

“One hypothesis has been that women who have more dense breast tissue also have higher, greater levels of estrogen, circulating estrogen, which contributes to both the breast density and to the risk of developing breast cancer,” said Dr. Harold Burstein, a breast oncologist at the Dana-Farber Cancer Institute who was not involved in the study. “Another hypothesis is that there’s something about the tissue itself, making it more dense, that somehow predisposes to the development of breast cancer. We don’t really know which one explains the observation.”

Thirty-eight states currently mandate that women receive written notification about their breast density and its potential breast cancer risk following mammography; however, studies have shown that many women find this information confusing.

“Even though women are notified usually in writing when they get a report after a mammogram that says, ‘You have increased breast density,’ it’s kind of just tucked in there at the bottom of the report. I’m not sure that anyone is explaining to them, certainly in person or verbally, what that means,” said Dr. Ruth Oratz, a breast oncologist at NYU Langone’s Perlmutter Cancer Center who was not involved in the study.

“I think what we’ve learned from this study is that we have to do a better job of educating not only the general public of women, but the general public of health care providers who are doing the primary care, who are ordering those screening mammograms,” she added.

Current screening guidelines recommend women of average risk of breast cancer undergo breast cancer screening every one to two years between ages 50 to 74 with the option of beginning at age 40.

Because women with dense breast tissue are considered to have higher than average cancer risks, the authors of the study suggest women with high breast density may benefit from supplemental screening like breast MRI or breast ultrasound, which may detect cancers that are missed on mammograms. Currently, coverage of supplemental screening after the initial mammogram varies, depending on the state and insurance policy.

The authors warn that “supplemental screening not only can lead to increased rates of cancer detection but also may result in more false-positive results and recall appointments.” They say clinicians should use risk assessment tools when discussing tradeoffs associated with supplemental screening.

“Usually, it’s a discussion between the patient, the clinical team, and the radiologist. And it’ll be affected by prior history, by whether there’s anything else of concern on the mammogram, by the patient’s family history. So those are the kinds of things we discuss frequently with patients who are in such situations,” Burstein said.

Breast cancer screening recommendations differ between medical organizations, and experts say women at higher risk due to breast density should discuss with their doctor what screening method and frequency are most appropriate.

“I think it’s really, really important that everyone understands – and this is the doctors, the nurses, the women themselves – that screening is not a one size fits all recommendation. We cannot just make one general recommendation to the entire population because individual women have different levels of risks of developing breast cancer,” Oratz said.

For the nearly one-third of women with dense breast tissue that reported there was nothing they could do to prevent breast cancer, experts say there are some steps you can take to reduce your risk.

“Maintaining an active, healthy lifestyle and minimizing alcohol consumption address several modifiable factors. Breastfeeding can decrease the risk. On the other hand, use of hormone replacement therapy increases breast cancer risk,” said Dr. Puneet Singh, a breast surgical oncologist at the MD Anderson Cancer Center who was not involved in the study.

The researchers add that there are approved medications, such as tamoxifen, that can be given for those at significantly increased risk that may reduce the chances of breast cancer by about half.

Finally, breast cancer doctors say that in addition to appropriate screening, knowing your risk factors and advocating for yourself can be powerful tools in preventing and detecting breast cancer.

“At any age, if any woman feels uncomfortable about something that’s going on in her breast, if she has discomfort, notices a change in the breast, bring that to the attention of your doctor and make sure it gets evaluated and don’t let somebody just brush you off,” Oratz said.

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