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Upper tract urothelial cancer, explained plainly | CION Cancer Clinics
Upper tract urothelial cancer is a cancer of the lining of the urine-collecting part of the kidney (the renal pelvis) or of the ureter, the tube from kidney to bladder. It is the same cell type as bladder cancer, but far less common. Blood in the urine is the usual first sign. This page explains where it starts, how it is found, and what the treatment choices depend on. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
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Medically reviewed by Dr. Muralidhar MuddusettyConsultant Surgical Oncologist · MBBS (AIIMS), MS (Surgery, AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh) · last reviewed September 2026, next review due September 2027
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On this page
- What is upper tract urothelial cancer?
- Where does it start, and why does that matter?
- How is it found and staged?
- Which words will you see, in plain language?
- Four things families tell us, and what is actually true
- How is it treated, and what can this page not tell you?
- Common questions about upper tract urothelial cancer
The short answer
What is upper tract urothelial cancer?
Upper tract urothelial cancer is a cancer that starts in the lining of the urinary tract above the bladder: in the renal pelvis, the funnel inside the kidney where urine collects, or in the ureter, the tube that carries urine down to the bladder. That lining is called the urothelium, and it is the same lining that bladder cancer grows in.
How it differs from the usual kidney cancer
Most kidney cancers grow in the part of the kidney that filters blood. That is renal cell cancer, and it behaves differently. Upper tract urothelial cancer grows in the drainage pipes. It needs different scans, a different operation, and different checks afterwards. Your report will say urothelial or transitional cell, which mean the same thing.
Who tends to get it
It is uncommon. It is more likely in people who smoke or used to, in older adults, in people who have had bladder cancer, and in families with Lynch syndrome, an inherited condition that also raises the chance of bowel cancer. Long-term use of some older painkillers and a plant chemical found in certain traditional remedies are also linked to it.
This page explains the disease. It cannot tell you your stage or which treatment suits you. Only your reports and your treating team can do that.
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The one sign that should not wait
Blood in the urine that you can see, even once, even if it stops on its own and even if there is no pain, needs a doctor within days. Do not put it down to the heat, or treat it as an infection without a urine test and a scan. This matters most if you are over fifty or have ever smoked. Most people with blood in the urine do not have cancer, but the ones who do are found early only if the first episode is checked.
Not sure whether this applies to you?
Ask an oncologistReading the report
Where does it start, and why does that matter?
Two things on your report shape everything that follows: where the tumour sits, and how its cells look.
In the renal pelvis
The most common site. The tumour sits in the collecting space inside the kidney. It cannot be separated from the kidney, so treatment that removes it usually removes the kidney too.
In the ureter
Less common. A tumour low in the ureter, near the bladder, can sometimes be removed with a segment of ureter while the kidney is kept. Higher up, that is harder to do.
Low grade or high grade
Grade describes how abnormal the cells look under the microscope. Low-grade tumours grow slowly and rarely spread. High-grade tumours can grow into the wall and beyond, and are treated more firmly.
Usually decided by
- Biopsy through a telescope
- Urine cell test (cytology)
Confined or invasive
A tumour that stays in the lining is easier to treat than one that has grown into the muscle or the fat outside the ureter. The scan gives an estimate; the final answer comes from the removed tissue.
The ureter wall is thin, so tumours here can reach the outside sooner than in the bladder.The pathway
How is it found and staged?
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Urine tests
A urine sample is checked for infection and for cancer cells. The cell test, called cytology, picks up high-grade tumours well but often misses low-grade ones, so a clear result does not close the question.
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A CT urogram
A CT scan timed so the dye fills the kidney and ureter. It is the main scan for this cancer, and it shows a filling defect, a narrowing, or a swollen kidney above a blockage.
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A look inside the bladder
A thin telescope through the urethra checks the bladder, because tumours in the same lining often appear there too. This is usually a short clinic procedure.
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Ureteroscopy and biopsy
A finer telescope is passed up the ureter into the kidney under anaesthetic. The surgeon looks at the tumour and takes small samples. This confirms the diagnosis and the grade.
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Staging and the tumour board
A chest scan, sometimes a PET-CT, and blood tests including kidney function. Your case is then discussed by surgical, medical and radiation oncologists together before a plan is proposed.
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On your report
Which words will you see, in plain language?
- Urothelial or transitional cell
- The cell type of this cancer. The two names mean the same thing.
- Renal pelvis
- The funnel inside the kidney where urine collects before it enters the ureter. Not the pelvis of your hips.
- Hydronephrosis
- A kidney swollen with urine because something below it is blocking the flow. A tumour in the ureter is one cause.
- Cytology
- A test that looks for cancer cells in the urine. Positive is meaningful; negative does not rule the cancer out.
- Carcinoma in situ (CIS)
- Flat high-grade cancer that has not grown below the lining. It looks harmless on a scan but is treated seriously.
- Lynch syndrome
- An inherited condition that raises the chance of bowel, womb and upper tract cancers. Your team may suggest testing if you are young or have affected relatives.
Commonly believed
Four things families tell us, and what is actually true
"The blood came once and stopped, so it was nothing."
Bleeding from a tumour comes and goes. A single episode that clears on its own is the usual way this cancer first shows itself. The stopping is not reassurance. It is the reason people arrive late.
"It is a bladder cancer that has spread up to the kidney."
Usually not. The same lining can grow separate tumours in more than one place. A tumour in the kidney and one in the bladder are most often two tumours in one field, not one cancer that has travelled.
"A biopsy through the telescope will spread the cancer."
The samples are taken from inside the urinary tract, where the cells already are. Without a biopsy the team cannot tell low grade from high grade, and that difference decides whether the kidney can be kept.
"Removing the kidney means dialysis for life."
Most people manage well with one healthy kidney and never need dialysis. What matters is how well the other kidney works, which is measured before any operation is recommended.
Being straight with you
How is it treated, and what can this page not tell you?
The main treatment for a high-grade or large tumour is an operation that removes the kidney, the whole ureter and a cuff of bladder on that side. For a small, low-grade, single tumour, or where the kidney must be kept, the tumour can often be treated through a telescope with a laser, or a segment of ureter can be removed and rejoined.
Chemotherapy around surgery
If the tumour has grown into the wall or reached lymph nodes, chemotherapy is often given before or after the operation to lower the chance of it returning. Because chemotherapy for this cancer depends on good kidney function, giving it before the kidney is removed is sometimes preferred. Your medical oncologist will explain which applies.
What this page cannot tell you
It cannot tell you your stage, whether the kidney can be saved, or how your cancer will behave. Those answers come from your scans, your biopsy and your kidney function, read together by your team. Ask them what grade and stage they think it is, what the options are, and what would change their advice.
Bring the family member who will be making decisions with you to that appointment.Questions we are asked
Common questions about upper tract urothelial cancer
Is it the same as bladder cancer?
It is the same cell type, growing higher up. The two behave similarly and share risk factors, and many people with one develop the other at some point. Treatment differs because the kidney and ureter cannot be treated the way the bladder is, and the ureter wall is thinner.
Does it run in families?
Usually not, but a small number of cases are linked to Lynch syndrome, an inherited condition that also raises the chance of bowel and womb cancers. If you were diagnosed young, or have close relatives with these cancers, ask your team about genetic testing.
Does blood in the urine always mean cancer?
No. Stones, infection and, in men, an enlarged prostate are all more common causes. But cancer cannot be ruled out without a urine test, a scan and often a look inside the bladder. Being checked once, properly, is what settles it.
Can it be treated without removing the kidney?
Sometimes. A single, small, low-grade tumour can be treated with a laser through a telescope, and a low ureter tumour can be cut out with the kidney kept. The trade-off is closer follow-up and a higher chance of the tumour returning. Your team will say whether you qualify.
Will I need chemotherapy?
Not everyone does. It is usually offered when the removed tissue shows the tumour had grown into the wall or reached lymph nodes. Some teams give it before surgery while both kidneys are still working. The pathology report after surgery is what decides.
Why will my bladder need checking afterwards?
Because the bladder lining is part of the same sheet the tumour grew in, and a new bladder tumour afterwards is common. A telescope check of the bladder is booked at intervals for years. Found early, bladder tumours are usually treated through the telescope.
What does high grade mean on my report?
That the cells look very different from normal lining cells and are more likely to grow into the wall and spread. It is not the same as stage, which describes how far the tumour has actually gone. High grade usually points towards removing the kidney and ureter rather than kidney-sparing treatment.
Is a PET-CT needed?
Not always. The CT urogram is the main scan. A PET-CT is sometimes added for high-grade or larger tumours to check lymph nodes and the rest of the body before a decision on surgery. Your team will say whether it changes the plan for you.
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Sources
- National Cancer Institute — Transitional Cell Cancer of the Renal Pelvis and Ureter Treatment (PDQ) - Patient Version
- Cancer Research UK — Kidney cancer
- American Cancer Society — Bladder cancer
- Macmillan Cancer Support — Kidney cancer
- NHS — Blood in urine
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
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Nephroureterectomy: what is removedThe main operation for this cancerKidney-sparing surgery for upper tract tumoursWhen the kidney can be keptChemotherapy around upper tract surgeryBefore or after the operation, and whyBladder surveillance after upper tract surgeryWhy the bladder is checked for yearsPET-CT scan guideWhat the staging scan shows
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