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TNM and Stage Groupings > Renal Pelvis and Ureter
Renal Pelvis and Ureter
Primary Tumor (T)
| T Category |
Stage Category Definitions |
| TX |
Primary tumor cannot be assessed |
| T0 |
No evidence of primary tumor |
| Ta |
Papillary noninvasive carcinoma |
| Tis |
Carcinoma in situ |
| T1 |
Tumor invades subepithelial connective tissue |
| T2 |
Tumor invades the muscularis |
| T3 |
(For renal pelvis only) Tumor invades beyond muscularis into peripelvic fat or
the renal parenchyma T3.
(For ureter only) Tumor invades beyond muscularis
into periureteric fat |
| T4 |
Tumor invades adjacent organs, or through the kidney into the perinephric fat |
Regional Lymph Nodes (N)
| N Category |
Stage Category Definitions |
| NX |
Regional lymph nodes cannot be assessed |
| N0 |
No regional lymph node metastasis |
| N1 |
Metastasis in a single lymph node, 2 cm or less in greatest dimension |
| N2 |
Metastasis in a single lymph node, more than 2 cm but not more than 5 cm in
greatest dimension; or multiple lymph nodes, none more than 5 cm in
greatest dimension |
| N3 |
Metastasis in a lymph node, more than 5 cm in greatest dimension |
*Note: Laterality does not affect the N classification
Distant Metastasis (M)
| M Category |
Stage Category Definitions |
| M1 |
Distant metastasis |
No distant metastasis (no pathologic M0; use clinical M to complete stage group)
Anatomic Stage/Prognostic Groups
| Stage |
T |
N |
M |
| 0a |
Ta |
N0 |
M0 |
| 0is |
Tis |
N0 |
M0 |
| I |
T1 |
N0 |
M0 |
| II |
T2 |
N0 |
M0 |
| III |
T3 |
N0 |
M0 |
| IV |
T4 |
N0 |
M0 |
| IV |
Any T |
N1 |
M0 |
| IV |
Any T |
N2 |
M0 |
| IV |
Any T |
N3 |
M0 |
| IV |
Any T |
Any N |
M1 |
