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Breast Cancer

Cancer happens when changes called transformations occur in qualities that manage cell development. The transformations let the cells separate and duplicate in an uncontrolled manner.

Breast cancer is dangerous development of malignant lumps in breast cells. Normally, the cancer outlines in either the lobules or the conductors of the breast. Lobules are the organs that produce milk, and ducts are the pathways that convey the milk from the glands to the nipple. Cancer can also occur in the fatty tissue or the fibrous connective tissue within your breast.

The uncontrolled cancer cells often invade other healthy breast tissue and can travel to the lymph nodes under the arms. The lymph nodes are a primary pathway that help the cancer cells move to other parts of the body.

Facts:

  • Breast cancer is the most common type of cancer in the UK. Most women diagnosed with breast cancer are over the age of 50, but younger women can also get breast cancer.
  • About 1 in 8 women are diagnosed with breast cancer during their lifetime. There’s a good chance of recovery if it’s detected at an early stage.[dt_gap height=”18″ /]

What are the Symptoms?[dt_gap height=”5″ /]

In its early stages, breast cancer may not cause any symptoms. In many cases, a tumor may be too small to be felt, but an abnormality can still be seen on a mammogram.

Breast cancer can have several symptoms, but the first noticeable symptom is usually a lump or area of thickened breast tissue.

Most breast lumps are not cancerous, but it’s always best to have them checked by a doctor.

You ought to likewise observe a GP in the event that you notice any of these side effects:

  • a change in the size or shape of one or both breasts
  • discharge from either of your nipples, which may be streaked with blood
  • a lump or swelling in either of your armpits
  • dimpling on the skin of your breasts
  • a rash on or around your nipple
  • a change in the appearance of your nipple, such as becoming sunken into your breast

Breast pain is not usually a symptom of breast cancer.[dt_gap height=”15″ /]

Causes of breast cancer

The exact causes of breast cancer are not fully understood. However, there are certain factors known to increase the risk of breast cancer.

These include:

  • age – the risk increases as you get older
  • a family history of breast cancer
  • a previous diagnosis of breast cancer
  • a previous non-cancerous (benign) breast lump
  • being tall, overweight or obese
  • drinking alcohol[dt_gap height=”18″ /]

Diagnosing breast cancer

After examining your breasts, a GP may refer you to a specialist breast cancer clinic for further tests. This might include breast screening (mammography) or taking a small sample of breast tissue to be examined under a microscope (a biopsy).[dt_gap height=”15″ /]

Types of breast cancer[dt_gap height=”8″ /]

There are a few kinds of breast malignant growth, and they are broken into two principle classifications: “invasive” and “noninvasive,” or in situ. While invasive cancer has spread from the breast ducts or glands to other parts of the breast, noninvasive cancer has not spread from the original tissue.[dt_gap height=”15″ /]

These two categories are used to describe the most common types of breast cancer, which include:

  • Ductal carcinoma in situ. Ductal carcinoma in situ (DCIS) is a noninvasive condition. With DCIS, the cancer cells are confined to the ducts in your breast and haven’t invaded the surrounding breast tissue.
  • Lobular carcinoma in situ. Lobular carcinoma in situ (LCIS) is cancer that grows in the milk-producing glands of your breast. Like DCIS, the cancer cells haven’t invaded the surrounding tissue.
  • Invasive ductal carcinoma. Invasive ductal carcinoma (IDC) is the most common type of breast cancer. This type of breast cancer begins in your breast’s milk ducts and then invades nearby tissue in the breast. Once the breast cancer has spread to the tissue outside your milk ducts, it can begin to spread to other nearby organs and tissue.
  • Invasive lobular carcinoma. Invasive lobular carcinoma (ILC) first develops in your breast’s lobules and has invaded nearby tissue.

Other, less common types of breast cancer include:

  • Paget disease of the nipple. This type of breast cancer begins in the ducts of the nipple, but as it grows, it begins to affect the skin and areola of the nipple.
  • Phyllodes tumor. This very rare type of breast cancer grows in the connective tissue of the breast. Most of these tumors are benign, but some are cancerous.
  • Angiosarcoma. This is cancer that grows on the blood vessels or lymph vessels in the breast.

The type of cancer you have determines your treatment options, as well as your likely long-term outcome.

  • Inflammatory breast cancer

Inflammatory breast cancer (IBC) is a rare but aggressive type of breast cancer. With this condition, cells block the lymph nodes near the breasts, so the lymph vessels in the breast can’t properly drain. Instead of creating a tumor, IBC causes your breast to swell, look red, and feel very warm. A cancerous breast may appear pitted and thick, like an orange peel.

  • Triple-negative breast cancer

To be diagnosed as triple-negative breast cancer, a tumor must have all three of the following characteristics:

  • It lacks estrogen receptors.
  • It lacks progesterone receptors.
  • It doesn’t have additional HER2 proteins on its surface.

If a tumor meets these three criteria, it’s labeled a triple-negative breast cancer. This type of breast cancer has a tendency to grow and spread more quickly than other types of breast cancer.

  • Metastatic breast cancer

Metastatic breast cancer is another name for stage 4 breast cancer. It’s breast cancer that has spread from your breast to other parts of your body, such as your bones, lungs, or liver.[dt_gap height=”12″ /]

Breast cancer stages

Breast cancer can be divided into stages based on how large the tumor or tumors are and how much it has spread. Cancers that are large and/or have invaded nearby tissues or organs are at a higher stage than cancers that are small and/or still contained in the breast.

  • Stage 0 breast cancer

Stage 0 is DCIS. Cancer cells in DCIS remain confined to the ducts in the breast and have not spread into nearby tissue.

  • Stage 1 breast cancer
  • Stage 1A: The primary tumor is 2 centimeters wide or less and the lymph nodes are not affected.
  • Stage 1B: Cancer is found in nearby lymph nodes, and either there is no tumor in the breast, or the tumor is smaller than 2 cm.
  • Stage 2 breast cancer
  • Stage 2A: The tumor is smaller than 2 cm and has spread to 1–3 nearby lymph nodes, or it’s between 2 and 5 cm and hasn’t spread to any lymph nodes.
  • Stage 2B: The tumor is between 2 and 5 cm and has spread to 1–3 axillary (armpit) lymph nodes, or it’s larger than 5 cm and hasn’t spread to any lymph nodes.
  • Stage 3 breast cancer
  • Stage 3A:
    • The cancer has spread to 4–9 axillary lymph nodes or has enlarged the internal mammary lymph nodes, and the primary tumor can be any size.
    • Tumors are greater than 5 cm and the cancer has spread to 1–3 axillary lymph nodes or any breastbone nodes.
  • Stage 3B: A tumor has invaded the chest wall or skin and may or may not have invaded up to 9 lymph nodes.
  • Stage 3C: Cancer is found in 10 or more axillary lymph nodes, lymph nodes near the collarbone, or internal mammary nodes.
  • Stage 4 breast cancer

Stage 4 breast cancer can have a tumor of any size, and its cancer cells have spread to nearby and distant lymph nodes as well as distant organs.

The testing your doctor does will determine the stage of your breast cancer, which will affect your treatment.[dt_gap height=”12″ /]

Diagnosis of breast cancer

To determine if your symptoms are caused by breast cancer or a benign breast condition, your doctor will do a thorough physical exam in addition to a breast exam. They may also request one or more diagnostic tests to help understand what’s causing your symptoms.

Tests that can help diagnose breast cancer include:

  • Mammogram. The most common way to see below the surface of your breast is with an imaging test called a mammogram. Many women aged 40 and older get annual mammograms to check for breast cancer. If your doctor suspects you may have a tumor or suspicious spot, they will also request a mammogram. If an abnormal area is seen on your mammogram, your doctor may request additional tests.
  • Ultrasound. A breast ultrasound uses sound waves to create a picture of the tissues deep in your breast. An ultrasound can help your doctor distinguish between a solid mass, such as a tumor, and a benign cyst.

Your doctor may also suggest tests such as an MRI or a breast biopsy.[dt_gap height=”12″ /]

Breast biopsy

If your doctor suspects breast cancer, they may order both a mammogram and an ultrasound. If both of these tests can’t tell your doctor if you have cancer, your doctor may do a test called a breast biopsy.

During this test, your doctor will remove a tissue sample from the suspicious area to have it tested. There are several types of breast biopsies. With some of these tests, your doctor uses a needle to take the tissue sample. With others, they make an incision in your breast and then remove the sample.

Your doctor will send the tissue sample to a laboratory. If the sample tests positive for cancer, the lab can test it further to tell your doctor what type of cancer you have.[dt_gap height=”12″ /]

Breast cancer treatment

Your breast cancer’s stage, how far it has invaded (if it has), and how big the tumor has grown all play a large part in determining what kind of treatment you’ll need.

To start, your doctor will determine your cancer’s size, stage, and grade (how likely it is to grow and spread). After that, you can discuss your treatment options. Surgery is the most common treatment for breast cancer. Many women have additional treatments, such as chemotherapy, targeted therapy, radiation, or hormone therapy.[dt_gap height=”12″ /]

Surgery

Several types of surgery may be used to remove breast cancer, including:

  • Lumpectomy. This procedure removes the tumor and some surrounding tissue, leaving the rest of the breast intact.
  • Mastectomy. In this procedure, a surgeon removes an entire breast. In a double mastectomy, both breasts are removed.
  • Sentinel node biopsy. This surgery removes a few of the lymph nodes that receive drainage from the tumor. These lymph nodes will be tested. If they don’t have cancer, you may not need additional surgery to remove more lymph nodes.
  • Axillary lymph node dissection. If lymph nodes removed during a sentinel node biopsy contain cancer cells, your doctor may remove additional lymph nodes.
  • Contralateral prophylactic mastectomy. Even though breast cancer may be present in only one breast, some women elect to have a contralateral prophylactic mastectomy. This surgery removes your healthy breast to reduce your risk of developing breast cancer again.[dt_gap height=”18″ /]

Radiation therapy

With radiation therapy, high-powered beams of radiation are used to target and kill cancer cells. Most radiation treatments use external beam radiation. This technique uses a large machine on the outside of the body.

Advances in cancer treatment have also enabled doctors to irradiate cancer from inside the body. This type of radiation treatment is called brachytherapy. To conduct brachytherapy, surgeons place radioactive seeds, or pellets, inside the body near the tumor site. The seeds stay there for a short period of time and work to destroy cancer cells.[dt_gap height=”15″ /]

Chemotherapy

Chemotherapy is a drug treatment used to destroy cancer cells. Some people may undergo chemotherapy on its own, but this type of treatment is often used along with other treatments, especially surgery.

In some cases, doctors prefer to give patients chemotherapy before surgery. The hope is that the treatment will shrink the tumor, and then the surgery will not need to be as invasive. Chemotherapy has many unwanted side effects, so discuss your concerns with your doctor before starting treatment.[dt_gap height=”18″ /]

Hormone therapy

If your type of breast cancer is sensitive to hormones, your doctor may start you on hormone therapy. Estrogen and progesterone, two female hormones, can stimulate the growth of breast cancer tumors. Hormone therapy works by blocking your body’s production of these hormones, or by blocking the hormone receptors on the cancer cells. This action can help slow and possibly stop the growth of your cancer.[dt_gap height=”18″ /]

Medications

Certain treatments are designed to attack specific abnormalities or mutations within cancer cells. For example, Herceptin (trastuzumab) can block your body’s production of the HER2 protein. HER2 helps breast cancer cells grow, so taking a medication to slow the production of this protein may help slow cancer growth.

Your doctor will tell you more about any specific treatment they recommend for you.[dt_gap height=”18″ /]

Breast cancer care

If you detect an unusual lump or spot in your breast, or have any other symptoms of breast cancer, make an appointment to see your doctor. Chances are good that it’s not breast cancer. For instance, there are many other potential causes for breast lumps.

But if your problem does turn out to be cancer, keep in mind that early treatment is the key. Early-stage breast cancer can often be treated and cured if found quickly enough. The longer breast cancer is allowed to grow, the more difficult treatment becomes.

If you’ve already received a breast cancer diagnosis, keep in mind that cancer treatments continue to improve, as do outcomes. So follow your treatment plan and try to stay positive.[dt_gap height=”18″ /]

How common is breast cancer?

According to the Centers for Disease Control and Prevention (CDC)Trusted Source, breast cancer is the most common cancer in women. According to statistics from the ACS, approximately 268,600 new cases of invasive breast cancer are expected to be diagnosed in the United States in 2019. Invasive breast cancer is cancer that has spread from the ducts or glands to other parts of the breast. More than 41,000 women are expected to die from the disease.

Breast cancer can also be diagnosed in men. The ACS also estimates that in 2019, more than 2,600 men will be diagnosed, and approximately 500 men will die from the disease.[dt_gap height=”18″ /]

Risk factors for breast cancer

There are several risk factors that increase your chances of getting breast cancer. However, having any of these doesn’t mean you will definitely develop the disease.

Some risk factors can’t be avoided, such as family history. You can change other risk factors, such as smoking. Risk factors for breast cancer include:

  • Age. Your risk for developing breast cancer increases as you age. Most invasive breast cancers are found in women over age 55.
  • Drinking alcohol. Drinking excessive amounts of alcohol raises your risk.
  • Having dense breast tissue. Dense breast tissue makes mammograms hard to read. It also increases your risk of breast cancer.
  • Gender. White women are 100 times more likely to develop breast cancer than white men, and black women are 70 times more likely to develop breast cancer than black men.
  • Genes. Women who have the BRCA1 and BRCA2 gene mutations are more likely to develop breast cancer than women who don’t. Other gene mutations may also affect your risk.
  • Early menstruation. If you had your first period before age 12, you have an increased risk for breast cancer.
  • Giving birth at an older age. Women who don’t have their first child until after age 35 have an increased risk of breast cancer.
  • Hormone therapy. Women who took or are taking postmenopausal estrogen and progesterone medications to reduce their signs of menopause symptoms have a higher risk of breast cancer.
  • Inherited risk. If a close female relative has had breast cancer, you have an increased risk for developing it. This includes your mother, grandmother, sister, or daughter. If you don’t have a family history of breast cancer, you can still develop breast cancer. In fact, the majority of women who develop it have no family history of the disease.
  • Late menopause start. Women who do not start menopause until after age 55 are more likely to develop breast cancer.
  • Never being pregnant. Women who never became pregnant or never carried a pregnancy to full term are more likely to develop breast cancer.
  • Previous breast cancer. If you have had breast cancer in one breast, you have an increased risk of developing breast cancer in your other breast or in a different area of the previously affected breast.[dt_gap height=”18″ /]

Breast cancer survival rate

Breast cancer survival rates vary widely based on many factors. Two of the most important factors are the type of cancer you have and the stage of the cancer at the time you receive a diagnosis. Other factors that may play a role include your age, gender, and race.

The good news is breast cancer survival rates are improving. According to the ACS, in 1975, the 5-year survival rate for breast cancer in women was 75.2 percent. But for women diagnosed between 2008 and 2014, it was 90.6 percent. Five-year survival rates for breast cancer differ depending on stage at diagnosis, ranging from 99 percent for localized, early-stage cancers to 27 percent for advanced, metastatic cancers.[dt_gap height=”18″ /]

Breast cancer prevention

While there are risk factors you can’t control, following a healthy lifestyle, getting regular screenings, and taking any preventive measures your doctor recommends can help reduce your risk of developing breast cancer.[dt_gap height=”18″ /]

Lifestyle factors

Lifestyle factors can affect your risk of breast cancer. For instance, women who are obese have a higher risk of developing breast cancer. Maintaining a healthy diet and getting more exercise could help you lose weight and lower your risk.

Drinking too much alcohol also increases your risk. This is true of having two or more drinks per day, and of binge drinking. However, one study found that even one drink per day increases your risk of breast cancer. If you drink alcohol, talk to your doctor about what amount they recommend for you.[dt_gap height=”18″ /]

Breast cancer screening

Having regular mammograms may not prevent breast cancer, but it can help reduce the odds that it will go undetected. The American College of Physicians (ACP) provides the following general recommendations for women at average risk for breast cancer:

  • Women ages 40 to 49: An annual mammogram isn’t recommended, but women should discuss their preferences with their doctors.
  • Women ages 50 to 74: A mammogram every other year is recommended.
  • Women 75 and older: Mammograms are no longer recommended.

The ACP also recommends against mammograms for women with a life expectancy of 10 years or less.

These are only guidelines, and recommendations from the American Cancer Society (ACS) differ. According to the ACS, women should have the option of receiving annual screenings at 40 years old, begin annual screening at 45 years old, and move to biennial screening at 55 years old.

Specific recommendations for mammograms are different for each woman, so talk with your doctor to see if you should get regular mammograms.[dt_gap height=”18″ /]

Preemptive treatment

Some women are at increased risk of breast cancer due to hereditary factors. For instance, if your mother or father has a BRCA1 or BRCA2 gene mutation, you’re at higher risk of having it as well. This significantly raises your risk of breast cancer.

If you’re at risk for this mutation, talk to your doctor about your diagnostic and prophylactic treatment options. You may want to be tested to find out if you definitely have the mutation. And if you learn that you do have it, discuss with your doctor any preemptive steps you can take to reduce your risk of getting breast cancer. These steps could include a prophylactic mastectomy (surgical removal of a breast).[dt_gap height=”18″ /]

Breast exam

In addition to mammograms, breast exams are another way to watch for signs of breast cancer.[dt_gap height=”18″ /]

Self-exams

Many women do a breast self-examination. It’s best to do this exam once a month, at the same time each month. The exam can help you become familiar with how your breasts normally look and feel so that you’re aware of any changes that occur.

Keep in mind, though, that the ACS considers these exams to be optional, because current research hasn’t shown a clear benefit of physical exams, whether performed at home or by a doctor.[dt_gap height=”18″ /]

Breast exam by your doctor

The same guidelines for self-exams provided above are true for breast exams done by your doctor or other healthcare provider. They won’t hurt you, and your doctor may do a breast exam during your annual visit.

If you’re having symptoms that concern you, it’s a good idea to have your doctor do a breast exam. During the exam, your doctor will check both of your breasts for abnormal spots or signs of breast cancer. Your doctor may also check other parts of your body to see if the symptoms you’re having could be related to another condition.[dt_gap height=”18″ /]

Breast cancer awareness

Fortunately for women and men around the world, people today are increasingly aware of the issues associated with breast cancer. Breast cancer awareness efforts have helped people learn what their risk factors are, how they can reduce their level of risk, what symptoms they should look for, and what kinds of screening they should be getting.

Breast Cancer Awareness Month is held each October, but many people spread the word throughout the year.

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