When endometrial cancer metastasizes (spreads), it often moves to nearby areas like the ovaries, fallopian tubes, or cervix. Like other cancers, it can also spread to other parts of the body. Although less common, endometrial cancer may reach the liver, bladder, lungs, or brain.
This article discusses the eight most common sites for endometrial cancer to spread. We’ll also cover what symptoms you may experience if your cancer has metastasized. Be sure to talk to your oncologist (cancer doctor) if you notice any new symptoms. They’ll run additional tests to check if the cancer has spread.
In early-stage endometrial cancer, the tumor starts as a growth or lesion on the inner lining of the uterus. This lining is known as the endometrium.
The tumor keeps growing deeper into the lining and eventually meets vessels from your lymphatic system. This is a key part of your immune system that carries immune cells throughout your body and filters your blood.
Once cancer cells spread into your lymphatic system, they can travel to nearby lymph nodes. These bean-shaped tissues contain immune cells and carry lymph fluid. Endometrial cancer typically spreads into the pelvic lymph nodes first.
Endometrial cancer that has spread to the lymph nodes can keep moving out to distant organs. The lymphatic system and circulatory system connect — meaning that cancer cells can move into your bloodstream. The cells travel around the body until they land in another organ and begin growing another tumor.
Depending on how severe your endometrial cancer is, it may spread to nearby or distant organs. Here are eight places it may travel to.
When endometrial cancer starts spreading, it moves into the nearby pelvic lymph nodes first. These nodes run along the blood vessels that are inside the pelvis — the large cavity that holds your reproductive organs.
For anyone diagnosed with stage 3 (stage III) endometrial cancer, the cancer may have spread to the pelvic lymph nodes. A study published in the journal Cancer found that around half of metastases found outside the uterus were in the pelvic lymph nodes.
Once endometrial cancer moves to the lymph nodes, it can travel to other reproductive organs. The ovaries and fallopian tubes sit next to the uterus. Together, these organs are known as the adnexa. People with stage 3 endometrial cancer may have tumors that have spread outside the uterus to these structures.
A study of 788 people with endometrial cancer looked at adnexal metastases. The authors noted that 4.4 percent of cases had cancer spread to the ovaries and fallopian tubes.
Endometrial cancer can also spread to the cervix — the lowermost part of the uterus. In stage 2 endometrial cancer, the cancer has grown and spread to the cervix.
Endometrial cancer rarely spreads outside the pelvis and abdomen. When it does, it spreads to the lungs most often. One study followed nearly 3,900 people with metastatic endometrial cancer. The authors found that 29.4 percent of distant metastases formed in the lungs.
Symptoms of endometrial cancer that has spread into the lungs include:
The next most common place for endometrial cancer to spread farther from the uterus is the liver. The same study of nearly 3,900 people found that 14.9 percent of distant metastases occur in the liver.
Another report found that cancer spread to the liver has a worse median overall survival rate (OS) compared to other sites. The median OS refers to the length of time in which half of people with a disease are still alive. Liver metastases from endometrial cancer have a median OS of eight months. This means that after eight months, only half of people with liver metastases are still alive.
Signs of cancer spread to the liver can include:
Another 10.5 percent of metastatic endometrial cancers form in the bones. The most common sites include the hips and spine. It’s also possible for the cancer to spread to the arms, legs, and skull.
According to the American Cancer Society, symptoms of bone metastases include:
Endometrial cancer spread to the brain is less common, occurring in only 3.1 percent of metastatic cases. Most people with brain metastases have high-grade tumors and other sites where the cancer has spread. Symptoms of cancer spread to the brain include headaches, seizures, and aphasia (difficulty speaking) or stroke.
Endometrial cancer rarely spreads to the rectum. This is the final part of the colon that collects stool (poop). Most rectal tumors form in the rectum first. However, some small case reports show that endometrial cancer can spread here as well.
Most people with cancer spread to the rectum also have endometriosis. This condition occurs when uterine tissues start growing outside of the uterus. They can cover the fallopian tubes, ovaries, and the area around the pelvis. Symptoms of endometrial cancer spread to the rectum include blood in your stool, constipation, or diarrhea.
Bladder cancer metastases are also rare but possible with endometrial cancer. One report noted that there are only four studies documenting these metastases. Endometrial cancers can also spread from the uterus to the outside of the bladder.
If your endometrial cancer has spread to your bladder, you might experience symptoms like:
After you’ve been diagnosed with endometrial cancer, your oncologist will continue monitoring your tumor. Whole-body imaging tests look for cancer spread to different organs.
Computed tomography (CT) scans use X-rays taken at many angles to create “slices” of images of your body. Doctors take a close look at these images for any signs of metastasis. They’re also useful for checking whether your cancer has returned after treatment.
Magnetic resonance imaging (MRI) uses strong magnets and radio waves to take pictures of your body in slices. These scans give extremely detailed pictures for finding cancer spread. Doctors usually use MRIs to look for tumors in the brain and spinal cord. They can also use it to check for cancer growth deep in the uterus.
Positron emission tomography (PET) scans use radioactive glucose (sugar) to look for cancer spread throughout the body. Cancer cells use more sugar than healthy cells. This means the radioactive sugar collects in small tumors, which light up on a screen.
If your doctor finds a spot they think is cancerous, they’ll perform a biopsy. This involves taking a small tissue sample to look at under a microscope. A pathologist (tissue specialist) can confirm that it’s endometrial cancer spread.
Once your doctor confirms that your cancer has spread, they’ll create a new treatment plan. Stage 4 endometrial cancer is usually treated with systemic, or body-wide, therapies. Examples include chemotherapy, immunotherapy, and hormone therapy. Radiation therapy can help shrink large tumors in some cases.
On MyEndometrialCancerCenter, the site for people with endometrial cancer and their loved ones, people come together to gain a new understanding of endometrial cancer and share their stories with others who understand life with the condition.
Do you have advanced endometrial cancer? Has it spread to other parts of your body? Share your experience in the comments below.
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