Types Of Breast Cancer
Breast cancers share one main thing in commonthey all begin in the breast. Most breast cancers start in the ducts that carry milk to the nipple, or in the lobules, where breast milk is made.However, there are many different types of breast cancer, and the distinctions between them can be difficult to understand.
Breast cancer types are separated into two main groups: invasive or in situ . All kinds of breast cancer fall under one of these categories.
In situ : Whenbreast cancer is not invasive, it is most likely ductal carcinoma in situ , a non-invasive type of breast cancer that starts in a milk duct and has not yet spread anywhere else. DCIS accounts for approximately 1 in 5 new cases of breast cancer.DCIS is also called stage 0 breast cancer, and most women have a positive prognosis at this stage. However, DCIS can progress and spread beyond the milk ducts, becoming invasive cancer.
Invasive: Invasive breast cancer refers to any breast cancer that spreads from the original site and invades other areas, like nearby breast tissue, lymph nodes or anywhere else in the body. Most breast cancers are invasive.
The most common type of invasive breast cancer is called invasive ductal carcinoma .IDC accounts for roughly 70 to 80 percent of all breast cancers.IDC starts in a milk duct and spreads, growing into other parts of the breast. With time, it may spread further, or metastasize, to other parts of the body.
What Are The Risk Factors For Breast Cancer
Like many conditions, risk factors for breast cancer fall into the categories of things you can control and things that you cannot control. Risk factors affect your chances of getting a disease, but having a risk factor does not mean that you are guaranteed to get a certain disease.
Controllable risk factors for breast cancer
- Alcohol consumption. The risk of breast cancer increases with the amount of alcohol consumed. For instance, women who consume two or three alcoholic beverages daily have an approximately 20% higher risk of getting breast cancer than women who do not drink at all.
- Body weight. Being obese is a risk factor for breast cancer. It is important to eat a healthy diet and exercise regularly.
- Breast implants. Having silicone breast implants and resulting scar tissue make it harder to distinguish problems on regular mammograms. It is best to have a few more images to improve the examination. There is also a rare cancer called anaplastic large cell lymphoma that is associated with the implants.
- Choosing not to breastfeed. Not breastfeeding can raise the risk.
- Using hormone-based prescriptions. This includes using hormone replacement therapy during menopause for more than five years and taking certain types of birth control pills.
Non-controllable risk factors for breast cancer
What Type Of Breast Cancer Is Most Likely To Metastasize
Metastatic breast cancer is breast cancer that has spread to other parts of the body. Cancer cells start in the breast and then multiply, invading the rest of the healthy breast tissue and eventually spreading to lymph nodes under the arms or in other organs.
While all types of breast cancer have the potential to metastasize, human epidermal growth factor receptor 2 -positive and triple-negative cancers are more aggressive and more likely to metastasize faster than the other types.
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Immunotherapy For Treating The Most Aggressive Breast Cancer
Dr. Toni Celià-Terrassa, a researcher at the Hospital del Mar Medical Research Institute has received a grant from the Cancer Research Institute to analyse this possibility.
Immunotherapy, the use of the patient’s own immune system to attack tumour cells is the method chosen by the Hospital del Mar and its research centre, the Hospital del Mar Medical Research Institute in their search for new breast cancer treatments. They are looking in particular at triple negative breast cancer, one of the most aggressive types, which, in addition, affects younger patients and is the breast tumour with the fewest therapeutic targets for oncologists. This commitment has received a strong boost thanks to the grant the Cancer Research Institute has just awarded the project “LCOR orchestrates the differential IFN-a response and immunological properties of triple-negative breast cancer cells”, led by Dr. Toni Celià-Terrassa, a researcher in the Molecular Therapy of Cancer group, directed by Dr. Joan Albanell, head of medical oncology at Hospital del Mar and director of the IMIM’s Cancer Research programme.
: Dr.Toni Celià-Terrassa/ Font: IMIM
Immunotherapy in breast cancer
Dr. Toni Celià-Terrassa
A prestigious institute
What Is The Most Aggressive Form Of Breast Cancer
most aggressive breast cancersbreast cancertype of breast cancerbreast cancerformcancerbreast
Also question is, what are the 4 types of breast cancer?
Types. Types of breast cancer include ductal carcinoma in situ, invasive ductal carcinoma, inflammatory breast cancer, and metastatic breast cancer. Metastatic breast cancer is also classified as Stage 4 breast cancer. The cancer has spread to other parts of the body.
how aggressive is triple negative breast cancer? In normal, healthy breast cells, the HER2 stimulates cell growth. Triplenegative breast cancer is considered to be more aggressive and have a poorer prognosis than other types of breast cancer, mainly because there are fewer targeted medicines that treat triplenegative breast cancer.
Besides, which type of breast cancer has the best prognosis?
In general, tubular, mucinous and medullary breast carcinomas have a better prognosis than the other sub-types.
What is the most aggressive form of cancer?
Top Five Most Dangerous Cancers in Men and Women
- Lung & bronchus 87,260 male deaths in 2013.
- Prostate 29,720 male deaths in 2013.
- Colon & rectum 26,300 male deaths in 2013.
- Pancreas 19,480 male deaths in 2013.
- Liver & intrahepatic bile duct 14,890 male deaths in 2013.
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Types Based On Where Cancer Starts Or Spreads
One of the ways doctors describe breast cancer is based on where in your body it starts or spreads.
Carcinoma and Adenocarcinoma. Carcinomas start in the tissues that line your breasts and other organs. Most breast cancers are carcinomas.
Breast cancers are often a type of carcinoma called an adenocarcinoma. These cancers start in the cells lining the milk ducts or the glands that produce milk .
Ductal Carcinoma. Ductal carcinoma is cancer of the cells that line the milk ducts in your breast.
Ductal carcinoma in situ is the earliest form of ductal carcinoma. “In situ” means it’s only in the milk ducts, and isn’t likely to spread to other parts of your body. About 1 in 5 people who are newly diagnosed with breast cancer have DCIS. This type is very curable.
Invasive ductal carcinoma is the most common type of breast cancer, affecting about 80% of people who are diagnosed. “Invasive” means the cancer is able to spread outside of the milk duct where it started.
There are several subtypes of invasive ductal carcinoma:
You might also hear about lobular carcinoma in situ . But LCIS isn’t really cancer, and won’t spread outside of the lobule. Doctors usually find it when they do a breast biopsy.
Phyllodes Tumor of the Breast. These rare tumors grow in the breast’s connective tissue. They’re more common in women who have an inherited condition called Li-Fraumeni syndrome. Only 1 in 4 phyllodes tumors are cancer. The rest are noncancerous .
Common Breast Cancer Types
After skin cancer, breast cancer is the most common type of cancer diagnosed in women. About 284,200 cases will be diagnosed in 2021, according to the American Cancer Society . Men also may develop breast cancer, though its much more rare.
Breast cancer is classified into different types based on how the cells look under a microscope. Most breast cancers are carcinomas, a type of cancer that begins in the linings of most organs.
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Infiltrating/invasive Lobular Breast Carcinoma
Infiltrating lobular carcinoma usually appears as a subtle thickening in the upper-outer breast quadrant.
As the name suggests, these tumours originate mostly in the breast lobules rather than the lining of the breast ducts.
Invasive lobular cancer is a less common type of breast cancer than invasive ductal cancer. This cancer accounts for about 10% of all invasive breast cancer cases.
Prognosis for infiltrating and invasive lobular breast carcinomas will naturally be influenced by tumor size, grade, stage and hormone receptor status..
However, lobular breast cancers, when positive for estrogen and progesterone receptors, tend to respond very well to hormone therapy.
The overall breast cancer survival rates for infiltrating lobular carcinoma, when matched by stage, are a little higher than for ductal carcinoma for the first 5 years.
Survival rates range from about 77% to 93%, but on average, the 5-year survival rate was estimated at about 90%.
Diagnosis And Treatment Options At Our Ctca Breast Cancer Centers
At the Breast Cancer Centers at each of our CTCA hospitals, located across the nation, our cancer experts are devoted to a single missiontreating breast cancer patients with compassion and precision. Each patients care team is led by a medical oncologist and coordinated by a registered oncology nurse, who helps track the various appointments, follow up on tests and answer questions that come up along the way. Your care team also may include a breast surgeon, radiation oncologist, radiologist, pathologist and a plastic and reconstructive surgeon with advanced training in helping patients restore function and appearance. Fertility preservation and genetic testing are also available for qualifying patients who need them.
Our pathologists and oncologists are experienced and trained in tools designed to diagnose, stage and treat different types of breast cancer, from early-stage ductal carcinoma in situ to complex diseases such as triple-negative and inflammatory breast cancer.
Our breast surgeons offer microsurgical approaches such as nipple-sparing mastectomy and reconstructive flap surgery, and our radiation oncologists employ technologies designed to reduce the risk of radiation exposure to the heart and other critical organs. The Breast Cancer Center is also involved in clinical trials on precision treatments and innovative technologies, including targeted therapies. These trials may offer participants options that may have otherwise been unavailable to them.
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Certain Breast Cancer Subtypes Have A Better Statistical Prognosis
In general, tubular, mucinous and medullary breast carcinomas have a better prognosis than the other sub-types.
The table below gives a very general approximation of the survival rates that may be associated with the different breast cancer subtypes.
However, please bear in mind that these figures are a rough generalization only and survival will always be determined by the individual characteristics of each breast cancer and each patient.
Nonetheless, the relative aggressiveness of the different breast cancer subtypes can be interpreted from the table.
and is almost always near 100% curable.)
|breast cancer sub-type|
|Inflammatory breast carcinoma||65% 35%|
Can Inflammatory Breast Cancer Be Prevented
Unfortunately, there is no way to prevent IBC . Thats why, in an interview with Flo, breast surgical oncologist Dr. Carlie Thompson says that routine screening for breast cancer is important: It catches breast cancer in its earliest form. Carlie says that the majority of cases of breast cancer are diagnosed via breast cancer screenings, like mammograms. During a mammogram, an x-ray is taken of your breasts to look for abnormal findings that may signify cancer. Mammography can identify cancer years before it could be felt.
The American Cancer Society recommends that women aged 4554 get annual mammograms.
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Survival Rates For Triple
Triple-negative breast cancer is considered an aggressive cancer because it grows quickly, is more likely to have spread at the time its found, and is more likely to come back after treatment than other types of breast cancer. The outlook is generally not as good as it is for other types of breast cancer.
Survival rates can give you an idea of what percentage of people with the same type and stage of cancer are still alive a certain amount of time after they were diagnosed. They cant tell you how long you will live, but they may help give you a better understanding of how likely it is that your treatment will be successful.
Keep in mind that survival rates are estimates and are often based on previous outcomes of large numbers of people who had a specific cancer, but they cant predict what will happen in any particular persons case. These statistics can be confusing and may lead you to have more questions. Talk with your doctor about how these numbers may apply to you, as he or she is familiar with your situation.
Current And Future Applications
Precision treatment of TNBC is not utopic, and it is only just knocking on the door. Characterization of driver alterations in potentially druggable genes is essential to assess TNBC heterogeneity and tailor the best treatment for each patient . Molecular stratification and differential treatment assignment have been used in patients with refractory metastatic TNBC . The study revealed clinical benefits in IM and BLIS+BRCA1/2 wild-type subsets. Patients whose malignancies were classified as IM received a combination of paclitaxel + anti-PD-1, which promoted an objective response rate in 50% of patients . Previous trials using monotherapy in TNBC without stratification showed an ORR of around 5-10% . These preliminary data suggest that the overly simplistic current IHC classification of TNBC alone betrays the diverse heterogeneity of this subgroup and risks leaving on the table potential treatment options that can be effective if directed toward specific intrinsic subtypes.
For TNBC that are classified into the immune-activated subtype, new biomarkers are emerging to predict response to immunotherapy in addition to PD-L1, such as the presence of TILs , tumor mutation burden , expression of immune genes , or through the construction of personalized cancer immunograms that integrate multiple variables .
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Can Breast Cancer Be Treated Without Chemo
Treating Breast Cancer Without Chemotherapy. In these stages cancers havenât spread beyond the breast or nearby lymph nodes. Treatment usually starts with surgery and may be followed by hormone therapy or radiation. For many women with early stage breast cancer, treatment will also include chemotherapy.
Different Types Of Aggressive Breast Cancer Identified
Vanderbilt-Ingram Cancer Center researchers have identified six subtypes of an aggressive and difficult-to-treat form of breast cancer, called triple-negative breast cancer .
In the July issue of the Journal of Clinical Investigation, Cancer Center Director Jennifer Pietenpol, and colleagues describe the molecular features of these six distinct subtypes and identify chemotherapies to which the different subtypes respond in cultured cells and animal tumor models. Knowing the specific subtype could help physicians determine which therapies would work best in patients with TNBC and also inform the discovery and development of new drugs to treat this form of breast cancer, the authors suggest.
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Special Types Of Invasive Breast Cancers
Some invasive breast cancers have special features or develop in different ways that affect their treatment and outlook. These cancers are less common but can be more serious than other types of breast cancer.
Inflammatory breast cancer is an uncommon type of invasive breast cancer. It accounts for about 1% to 5% of all breast cancers.
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Breast Cancer Survival Rates Are Affected By Tumor Grade
Breast cancer grade refers to the size and shape of the malignant breast cancer cells. If the breast cancer cells look very different than normal breast tissue cells, and somewhat random in appearance, they are called poorly differentiated and described as high grade.
There are three main breast cancer grades and these are as follows:-
- Grade 1: The cancer cells are well differentiated and look the most like normal cells. These type of cancers tend to be slow-growing.
- Grade 2: These cancer cells are moderately differentiated. This means that the cells look less like normal cells and tend to grow faster.
- Grade 3: Poorly differentiated cells do not appear like normal cells at all and tend to be very fast growing. Hence, the affect on prognosis.
Microscopic Images of Ductal cell carcinoma in Situ Grades 1, 2 and 3
Higher grade breast cancers tend to have a poorer prognosis.
You will be able to find the Grade of your tumor on your pathology report.
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Does A Benign Breast Condition Mean That I Have A Higher Risk Of Getting Breast Cancer
Benign breast conditions rarely increase your risk of breast cancer. Some women have biopsies that show a condition called hyperplasia . This condition increases your risk only slightly.
When the biopsy shows hyperplasia and abnormal cells, which is a condition called atypical hyperplasia, your risk of breast cancer increases somewhat more. Atypical hyperplasia occurs in about 5% of benign breast biopsies.
What Are The Warning Signs Of Breast Cancer
- A lump or thickening in or near the breast or in the underarm that persists through the menstrual cycle.
- A mass or lump, which may feel as small as a pea.
- A change in the size, shape, or contour of the breast.
- A blood-stained or clear fluid discharge from the nipple.
- A change in the look or feel of the skin on the breast or nipple .
- Redness of the skin on the breast or nipple.
- An area that is distinctly different from any other area on either breast.
- A marble-like hardened area under the skin.
These changes may be found when performing monthly breast self-exams. By performing breast self-exams, you can become familiar with the normal monthly changes in your breasts.
Breast self-examination should be performed at the same time each month, three to five days after your menstrual period ends. If you have stopped menstruating, perform the exam on the same day of each month.
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