Transitional cells are a type of cell that lines the inside of the renal pelvis, ureters, and other organs. These cells are able to stretch when the renal pelvis or bladder is full of urine and shrink when it is emptied. Transitional cell cancer can form in the renal pelvis, the ureters, or both.
The renal pelvis is the area at the center of the kidney. It collects urine before it flows into the ureters, which are long tubes that connect the kidney to the bladder. There are two kidneys, one on each side of the backbone, above the waist. The kidneys of an adult are about 5 inches long and 3 inches wide and are shaped like a kidney bean.
The kidneys play an important role in the urinary system:
Renal cell cancer is a more common type of kidney cancer. For more information, see Renal Cell Cancer Treatment.
Transitional cell cancer of the renal pelvis and ureter is caused by certain changes to the way transitional cells in the renal pelvis and ureters function, especially how they grow and divide into new cells. There are many risk factors for transitional cell cancer of the renal pelvis and ureter, but many do not directly cause cancer. Instead, they increase the chance of DNA damage in cells that may lead to cancer. To learn more about how cancer develops, see What Is Cancer?
A risk factor is anything that increases the chance of getting a disease. Some risk factors for transitional cell cancer of the renal pelvis and ureter, like smoking, can be changed. However, risk factors may also include things you cannot change, like your personal medical history. Learning about risk factors for transitional cell cancer of the renal pelvis and ureter can help you make changes that might lower your risk of getting it.
Risk factors for transitional cell cancer of the renal pelvis and ureter include:
Having one or more of these risk factors does not mean that you will get transitional cell cancer of the renal pelvis and ureter. Many people with risk factors never develop this type of cancer, while others with no known risk factors do. Talk with your doctor if you think you might be at risk.
In the early stages, there may be no signs and symptoms of transitional cell cancer of the renal pelvis and ureter. Symptoms may appear as the tumor grows and may include:
These symptoms may be caused by transitional cell cancer of the renal pelvis and ureter or by other conditions. It’s important to check with your doctor if you have any of these symptoms to find out the cause and begin treatment if needed.
In addition to asking about your personal and family health history and doing a physical exam, your doctor may perform the following tests and procedures:
The process used to find out if the cancer has spread within the renal pelvis and ureter or to other parts of the body is called staging. The information gathered from the staging process determines the stage of the disease. The results of the diagnostic and staging tests will also help you and your doctor plan treatment.
The following tests and procedures may also be used in the staging process:
You may want to get a second opinion to confirm your cancer diagnosis and treatment plan. If you seek a second opinion, you will need to get medical test results and reports from the first doctor to share with the second doctor. The second doctor will review the pathology report, slides, and scans. They may agree with the first doctor, suggest changes or another treatment approach, or provide more information about your cancer.
To learn more about choosing a doctor and getting a second opinion, see Finding Cancer Care. You can contact NCI’s Cancer Information Service via chat, email, or phone (both in English and Spanish) for help finding a doctor, hospital, or getting a second opinion. For questions you might want to ask at your appointments, see Questions to Ask Your Doctor about Cancer.
The prognosis depends on the stage and grade of the tumor.
The treatment options depend on:
Most transitional cell cancer of the renal pelvis and ureter can be cured if found early.
Cancer stage describes the extent of cancer in the body, such as the size of the tumor, whether it has spread, and how far it has spread from where it first formed. It is important to know the stage of transitional cell cancer of the renal pelvis and ureter to plan the best treatment.
There are several staging systems for cancer that describe the extent of the cancer. Transitional cell cancer of the renal pelvis and ureter staging usually uses the TNM staging system. You may see your cancer described by this staging system in your pathology report. Based on the TNM results, a stage (I, II, III, or IV, also written as 1, 2, 3, or 4) is assigned to your cancer. When talking to you about your cancer, your doctor may describe it as one of these stages.
Learn more about Cancer Staging.
In stage 0, abnormal cells are found in tissue lining the inside of the renal pelvis or ureter. These abnormal cells may become cancer and spread into nearby normal tissue. Stage 0 is divided into stages 0a and 0is, depending on the type of tumor:
In stage I, cancer has formed and has spread from the tissue lining the inside of the renal pelvis or ureter to the connective tissue layer.
In stage III, cancer has spread to the muscle layer of the renal pelvis or ureter.
In stage III, cancer has spread:
In stage IV, cancer has spread to at least one of the following:
Stage IV transitional cell cancer of the renal pelvis and ureter is also called metastatic cancer. Metastatic cancer happens when cancer cells travel through the lymphatic system or blood and form tumors in other parts of the body. The metastatic tumor is the same type of cancer as the primary tumor. For example, if transitional cell cancer renal pelvis and ureter spreads to the liver, the cancer cells in the liver are actually transitional cell cancer of the renal pelvis and ureter. The disease is called metastatic transitional cell cancer of the renal pelvis and ureter, not liver cancer. Learn more in Metastatic Cancer: When Cancer Spreads.
The cancer is found only in the kidney.
The cancer has spread to tissues around the kidney and to nearby lymph nodes and blood vessels in the pelvis.
The cancer has spread to other parts of the body.
Recurrent cancer is cancer that has recurred (come back) after it has been treated. If transitional cell cancer of the renal pelvis and ureter comes back, it may come back in the renal pelvis, ureter, or in other parts of the body, such as the lung, liver, or bone. Tests will be done to help determine where the cancer has returned. The type of treatment for recurrent transitional cell cancer of the renal pelvis and ureter will depend on where it has come back.
Learn more in Recurrent Cancer: When Cancer Comes Back. Information to help you cope and talk with your health care team can be found in the booklet When Cancer Returns.
Different types of treatments are available for people with transitional cell cancer of the renal pelvis and ureter. You and your cancer care team will work together to decide your treatment plan, which may include more than one type of treatment. Many factors will be considered, such as the stage of the cancer, your overall health, and your preferences. Your plan will include information about your cancer, the goals of treatment, your treatment options and the possible side effects, and the expected length of treatment.
Talking with your cancer care team before treatment begins about what to expect will be helpful. You’ll want to learn what you need to do before treatment begins, how you’ll feel while going through it, and what kind of help you will need. To learn more, see Questions to Ask Your Doctor about Treatment.
One of the following surgical procedures may be used to treat transitional cell cancer of the renal pelvis and ureter:
For some people, joining a clinical trial may be an option. There are different types of clinical trials for people with cancer. For example, a treatment trial tests new treatments or new ways of using current treatments. Supportive care and palliative care trials look at ways to improve quality of life, especially for those who have side effects from cancer and its treatment.
You can use the clinical trial search to find NCI-supported cancer clinical trials accepting participants. The search allows you to filter trials based on the type of cancer, your age, and where the trials are being done. Clinical trials supported by other organizations can be found on the ClinicalTrials.gov website.
Learn more about clinical trials, including how to find and join one, at Clinical Trials Information for Patients and Caregivers.
This summary section describes treatments that are being studied in clinical trials. It may not mention every new treatment being studied.
Fulguration is a surgical procedure that destroys tissue using an electric current. A tool with a small wire loop on the end is used to remove the cancer or to burn away the tumor with electricity.
This is a surgical procedure to remove localized cancer from the renal pelvis without removing the entire kidney. Segmental resection may be done to save kidney function when the other kidney is damaged or has already been removed.
A laser beam (narrow beam of intense light) is used as a knife to remove the cancer. A laser beam can also be used to kill the cancer cells. This procedure may also be called laser fulguration.
Chemotherapy (also called chemo) uses drugs to stop the growth of cancer cells, either by killing the cells or by stopping the cells from dividing. To learn more about chemotherapy, see Chemotherapy to Treat Cancer and Chemotherapy and You: Support for People With Cancer.
Immunotherapy helps a person’s immune system fight cancer. Learn more about Immunotherapy to Treat Cancer.
Regional treatment for transitional cell cancer of renal pelvis and ureter is a method of placing the chemotherapy or immunotherapy drug directly into the renal pelvis or the ureter to mainly affect cancer cells in those areas.
For information about side effects caused by treatment for cancer, visit our Side Effects page.
As you go through treatment, you will have follow-up tests or check-ups. Some tests that were done to diagnose or stage the cancer may be repeated to see how well the treatment is working. Decisions about whether to continue, change, or stop treatment may be based on the results of these tests.
Some of the tests will continue to be done from time to time after treatment has ended. The results of these tests can show if your condition has changed or if the cancer has recurred (come back).
Treatment of localized transitional cell cancer of the renal pelvis and ureter may include:
To learn more about these treatments, see the Treatment Option Overview.
Use our clinical trial search to find NCI-supported cancer clinical trials that are accepting patients. You can search for trials based on the type of cancer, the age of the patient, and where the trials are being done. General information about clinical trials is also available.
Treatment of regional transitional cell cancer of the renal pelvis and ureter is usually done in a clinical trial.
To learn more about clinical trials, see the Treatment Option Overview.
Use our clinical trial search to find NCI-supported cancer clinical trials that are accepting patients. You can search for trials based on the type of cancer, the age of the patient, and where the trials are being done. General information about clinical trials is also available.
Treatment of metastatic or recurrent transitional cell cancer of the renal pelvis and ureter is usually done in a clinical trial, which may include chemotherapy.
To learn more about clinical trials, see the Treatment Option Overview.
Use our clinical trial search to find NCI-supported cancer clinical trials that are accepting patients. You can search for trials based on the type of cancer, the age of the patient, and where the trials are being done. General information about clinical trials is also available.
For more information from the National Cancer Institute about transitional cell cancer of the renal pelvis and ureter, see:
For general cancer information and other resources from the National Cancer Institute, visit:
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PDQ® Adult Treatment Editorial Board. PDQ Transitional Cell Cancer of the Renal Pelvis and Ureter Treatment. Bethesda, MD: National Cancer Institute. Updated <MM/DD/YYYY>. Available at: https://www.cancer.gov/types/kidney/patient/transitional-cell-treatment-pdq. Accessed <MM/DD/YYYY>. [PMID: 26389285]
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