![]() ![]() Urothelial carcinoma used to be called transitional cell carcinoma or TCC. It begins in the urothelial cells that line the urinary tract. It also accounts for 10% to 15% of kidney cancers diagnosed in adults. Urothelial carcinoma (or UCC) accounts for about 90% of all bladder cancers. The type of bladder cancer depends on how the tumor’s cells look under the microscope. A benign tumor means the tumor can grow but will not spread. A cancerous tumor is malignant, meaning it can grow and spread to other parts of the body. In most cases, it is treated in much the same way as bladder cancer and is described in this guide. Cancer that develops in the renal pelvis and ureters is also considered a type of urothelial cancer and is often called upper tract urothelial cancer. Urothelial cells also line the renal pelvis and ureters and urethra. This layer of cells is separated from the bladder wall muscles, called the muscularis propria, by a thin, fibrous band called the lamina propria.īladder cancer begins when healthy cells in the bladder lining-most commonly urothelial cells-change and grow out of control, forming a mass called a tumor. The bladder, like other parts of the urinary tract, is lined with a layer of cells called the urothelium. The prostate gland is also part of the urinary tract. The urethra is the tube that carries urine out of the body. The ureter is a tube that runs from each kidney into the bladder. The renal pelvis is a funnel-like part of the kidney that collects urine and sends it into the ureter. The urinary tract is also made up of the kidneys, ureters, and urethra. This function makes the bladder an important part of the urinary tract. The bladder is a hollow organ in the pelvis that stores urine before it leaves the body during urination. About the bladder, renal pelvis, ureter, and urethra (urinary tract) Think of that menu as a roadmap for this entire guide. This is the first page of Cancer.Net’s Guide to Bladder Cancer. ON THIS PAGE: You will find some basic information about this disease and the parts of the body it may affect.
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