| T0 | No evidence of primary tumor |
| Ta | Non-invasive papillary carcinoma |
| Tis | Carcinoma in situ |
| T1 | Tumor invades sub epithelium |
| T2 | Tumor invades muscularis |
| T3 | Tumor invades beyond muscularis into perirenal or periureteric fat or into renal parenchyma |
| T4 | Tumor invades adjacent organs or through the kidney into perinephric fat |
| N0 | No regional lymph nodes |
| N1 | Spread to single lymph node < 2 cm |
| N2 | Spread to single lymph node > 2 cm or multiple lymph nodes |
| M0 | No distant metastasis |
| M1 | Distant metastasis present |
Upper tract urothelial carcinoma staging
