Invasive Lobular Carcinoma is a type of cancer that causes symptoms on the milk-producing glands in your breasts. The common symptoms of ILC are discharge from the nipples, breast pain and changes in the breast skin. The disease spreads to other parts of the body without any obstruction. Its common treatment options include use of anti-cancer drugs, chemotherapy and surgery.
What is Invasive Lobular Carcinoma?
ILC is a bread cancer that affects the milk-production and transportation system in your breast. When you search for the exact location where this cancer starts, you may find that healthcare partners use the term terminal duct lobular units or “lobules” to describe the location of origin.
Studies show that 15% to 20% cases of breast cancer belong to invasive lobular breast cancer. The main cause of starting this type of blood cancer is the fluctuations in the level of a specific female hormone, called estrogen. The cancer progresses and starts in the response of fluctuation of estrogen. The process of cancerous cell growth is slow. That’s why you may find it on mammograms even after having it for years. It shows its symptoms after a specific time. It is similar to other types of breast cancers and also spreads to other parts of the body through affected breast tissues and fluid.
According to a report, in the U.S. around 40,000 to 50,000 females become affected by ILC every year. It can be cured through early diagnosis and treatment. But late diagnosis often ends in the shadow of cancer to the other areas of bias that makes it difficult or sometimes impossible to treat it.
Symptoms of Invasive Lobular Carcinoma
In common, breast cancer like all other types of cancer happens due to multiplication of cancerous cells at specific regions of the body that creates a tumor there. The tumor is converted to a lump in your rear that can be felt. But ILC is a little bit different. In this time of breast cancer, the cancerous cells get aligned in the form of a single file by sticking to each other and making strands for strings of cancer cells.
At early stages, the ILC grows slowly and does not create a lump in the brain. You also may not notice the clear changes in your breasts. However, when the lump appears,you may observe the symptoms, such as:
- Lump near your armpit.
- Breast pain or warmth.
- Skin discoloration that appears reddish or darker than usual.
- Changes in breast size and shape including the swelling of the affected area.
- Nipple discharge.
- Inverted nipple that points into your breast instead pointing out.
- Breast skin that looks or feels thicker than usual.
- Breasts often have tiny dents, puckers or dimples.
Causes of Invasive Lobular Cancer
Certain genetic mutations cause changes in your healthy breast cells, turning them into cancer cells. Exact causes for the sudden genetic mutations are still not known. Experts are trying to find out the triggering factors that initiate the genetic mutations.
however , researchers have fund out sine rusk factors that increase the risk of developing invasive lobular carcinoma, including:
- Setting your menstrual periods before the usual age (12 years).
- Starting menopause later than usual age (after age 55).
- Being older than age 60.
- Receiving certain types of hormonal therapy to cure menopausal symptoms.
- Giving birth after the age of 30 or even not giving birth.
- Having globular carcinoma in situ.
- Having breast cancer previously.
- Inheriting certain genetic mutations.
- Complications Related to Invasive Lobar Carcinoma.
ILC often causes two uncommon complications, including:
- It spreads to a larger-than-usual range of tissues and organs.
- It often turns into metastatic invasive lobular carcinoma that means it tends to spread cancer cells to other areas of your body that are far from your breast. You may find this around 15 to 20 years after the diagnosis and treatment of ILC.
Metastatic breast cancer (that spreads cancer to other parts of the body), usually affects your vital organs such as, lungs, liver, brain and bones. But along with these parts, there are great chances to spread the ILC to less common areas, including your:
- Female reproductive organs, such as ovaries, and uterus.
- Peritoneum is the lining of your abdomen.
- Digestive system including your stomach, large intestine and colon.
- Tissues around your eyes are known as orbital tissues.
- Leptomeninges make the lining of your spinal cord and brain.
Risk Factors
The most important risk factors that increase the risk of developing ILC include:
Lobular Carcinoma in situ (LCIS)
Having an LCIS increases the risk of developing ILC many fold. LCIS is the condition when the number of abnormal or atypical cells gets increased but these cancer cells are confined to the lobules and have not invaded surrounding normal healthy breast tissues.
This thing makes sure that LCIS isn’t a cancer itself, but it is considered as an uncommon condition.
Diagnosis of ILC

ILC is usually diagnosed through proper physical examination and some specific tests.
Your healthcare provider starts the process by examining your breasts and the area near your armpits.
Some tests are also performed to have clarity about disease. Tests that help diagnosing lobular breast cancer include:
- Mammogram.
- Breast biopsy.
- Ultrasound.
- MRI.
Microscopic study of cancer cells help identify which type of ILC you have. ILC also has further sub-types. If the cells line up in a single file, the type of cancer is Classic ILC. other than classic type, other types ae a;so recognized on the basis of cancerous cells growth, such as:
- Solid Type: these cells grow in the shape of large sheets.
- Signet Ring Cell: These cells are filled with mucus.
- Alveolar Cells: They form groups of minimum 20 cells and keep growing.
- Pleomorphic Cells: These cells are larger than classic ILC and their shapes are different from each other.
- Tubulolobular Cells: These cells sometimes grow in single file and sometimes they grow in tube-like structures.
Common types of tests for ILC diagnosis are:
Mammograms
Mammograms sometimes give false-negative results for lobular cancer. This is because in X-ray the cells of lobular cancer look similar to normal tissue. But ILC also spreads through the nest tissues but the way of spreading is totally different from IDC.
According to radiological studies, in ILC calcium deposits or tumors are not formed. Therefore, it is difficult for radiologists to distinguish ILC from normal breast tissues on a mammogram. Mammogram helps find out if the tumor has developed in one breast or in both. But on mammogram, its size appears smaller than it actually is.
Breast Biopsy
It is another effective way to diagnose invasive breast cancer. Doctors usually recommend breast biopsy to have an exact idea about lobular breast cancer spread. In this method small samples of breast tissues are taken. Professional pathologists examine the tissues under a microscope. They try to find out abnormal breast cells or other signs of cancer in breasts.
After diagnosing ILC, the cancer care team uses test results to stage the cancer so that they may plan your treatment in a better way.
Staging ILC
Staging of ILC refers to determining how advanced the breast cancer is or how fat it has spread from breast. Its staging is typically based on:
- Number of lymph nodes that have been affected by cancer.
- The size of the tumor.
- On the basis of these factors, ILC is considered to have or stags.
The spreading of ILC usually affect your:
- Brain.
- Bones.
- Liver.
- Lungs.
- Lymph nodes.
But its spreading way is different from IDC because it commonly spreads to:
- Abdominal lining.
- Intestines and stomach.
- Reproductive organs.
Some tests are performed to determine whether cancer cells have spread to other parts. The tests include checking the function of the liver, lymph nodes and circulatory system.
Four stages of Invasive lobular breast cancer include:
- Stage I: At this stage the tumor is about 1 to 2 centimeters across and sometimes it reaches nearby lymph nodes.
- Stage II: At this stage the tumors get fully grown that is equal to 2 centimeters exactly and start spreading to nearby lymph nodes. However, some cases have also been observed with up to 5 centimeters tumors or more across but never spread to lymph nodes.
- Stage III: This stage confirms that cancer has fully spread to the breast and its lymph nodes. But it is also a wired reality that stage two cancer has had more lymph hides than stage three.
- Stage IV: This stage shows that the cancer has spread to system organs of your body like the bones, lungs and liver.
Management and Treatment
The treatment of ILC usually includes a combination of:
- Chemotherapy before or after surgery.
- Targeted therapy that helps focus on genetic mutations that convert healthy breast cells into cancer cells.
- Hormone Therapy that indicates the presence of estrogen receptor-positive (ER+) breast cancer.
- Radiation Therapy that helps kill cancer cells that remain intact even after chemotherapy and other treatment options.
- Last but not least, Breast Cancer Surgery.
What is the Normal Recovery Time for ILC Patients?
The recovery from invasive lobular breast cancer depends on the method of treatment.
For example, after surgery you need at least three to fir weeks of incomplete recovery but the treatments like chemotherapy or hormone therapy take six to eight months for recovery.
You also have to focus to understand how cancer treatment has affected your routine life. Remember to ask for your recovery time expectations from your oncologist.
What Risk Factors or Complications after Treatment Can Cause Side Effects?
It is common that after treatment of ILC, people experience some complications or side effects. These may be:
- Surgical wound infection that appear with symptoms if fever greater than 101 degree Fahrenheit or thick cloudy discharge from incision cut.
- Some cancer treatments show effects in the form of vomiting that you can’t control.
- Pain in the breast is another side effect of cancer treatment. It becomes severe enough that no medication can ease it.
Prevention of Lobular Breast Cancer
Lobular breast cancers also develop in people like other tumors.
However, research has mentioned some tips to reduce the risk of developing ILC by:
- Eating a balanced diet.
- Taking exercise regularly.
- Limiting alcohol consumption.
- Doing a self-exam.
- Maintaining moderate weight.
- Getting annual checkups, including mammograms.
People often consider HRT but never rely on HRT without discussing the benefits and risks of this therapy. Because HRT often causes the risk of lobular carcinoma and other types of breast cancer.
What is the Survival Rate for Invasive Lobular Carcinoma?
Survival rate represents the percentage of people with specific disease diagnosis who remain alive after a certain time. The time changed about four to five years after the diagnosis.
In case of ILC,the survival rate has been declared about 90%. Of women who have invasive lobular breast cancer. Researchers claim that the affected women often remain alive for more than five years after diagnosis. But they include stage I to stage III women in this estimation.
However, if the diagnosis is down at an earlier stage, the survival rate increases. Early diagnosis even confirms 80% of ILC women remain alive and cancer-free even 10 years after diagnosis.
Remember that survival rate never product how long will you live with cancer because the information about survival rate is confusing and causes concerns. However, healthcare providers can play a role in making you cancer-free for a longer time.
Conclusion
Your body is your precious asset. You know more about it than any other. Similarly, you should have complete knowledge and information about your breasts. You should be familiar with all the common symptoms related to breast cancer and its types. So that when you observe a change in your breasts you should focus on it.
Invasive lobular carcinoma doesn’t cause a lump in your breast unlike other types of breast cancer. Its common symptoms are breast pains and dimples in your breast skin.
Immediate diagnosis and treatment can make your life span linger and safe.





