When cells in the body grow out of control, it is called cancer. A growth of cancer cells may be called a tumor. Metastatic urinary tract cancer is cancer that started as a tumor in the urinary tract and has spread to other parts of the body. The kidney, ureter, bladder, and urethra are all part of the urinary tract.                When urinary tract cancer spreads, the original tumor sheds cancer cells that travel through the bloodstream and lymph system to other parts of the body. New tumors begin to grow. How far the cancer spreads from the original tumor site depends on the type of cells, their location, and your response to treatment. Urinary cancer commonly spreads to the lungs, bones, lymph nodes, and liver.                 Symptoms               The symptoms of the original tumor in the urinary tract are often the same as the symptoms of a urinary tract infection. Possible symptoms are:          blood in the urine the need to urinate often and with urgency.          The symptoms of tumor spread (metastases) depend on where in the body the new tumors are located. Some possible symptoms are:       pain in the back or bone pain swelling in the legs enlarged lymph nodes in the groin [ Back ]