Stages of Transitional Cell Cancer of the Renal Pelvis and Ureter
The following stages are used for transitional cell cancer of the renal pelvis and/or ureter:
Stage 0 (Papillary Carcinoma and Carcinoma in Situ)
In stage 0, abnormalcells 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 stage 0a and stage 0is, depending on the type of tumor:
- Stage 0a may look like tiny mushrooms growing from the lining. Stage 0a is also called noninvasive papillary carcinoma.
- Stage 0is is a flat tumor on the tissue lining the inside of the renal pelvis or ureter. Stage 0is is also called carcinoma in situ.
In stage I, cancer has formed and spread through the lining of the renal pelvis and/or ureter, into the layer of connective tissue.
In stage II, cancer has spread through the layer of connective tissue to the muscle layer of the renal pelvis and/or ureter.
In stage III, cancer has spread:
- to the layer of fat outside the renal pelvis and/or ureter; or
- into the wall of the kidney.
In stage IV, cancer has spread to:at least one of the following:
- A nearby organ.
- The layer of fat surrounding the kidney.
- One or more lymph nodes.
- Other parts of the body.
Transitional cell cancer of the renal pelvis and ureter is also described as localized, regional, or metastatic:
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.