| Primary Tumor (T) | |
| Regional Lymph Nodes (N) | |
| Distant Metastasis (M) | |
This view displays the TNM formula. Please select appropriate value from the list for T/N/M variables. The result will be displayed, based on your selection of variables.
Clinical T (cT)
| cT Category | cT Criteria |
|---|---|
| cTX | Primary tumor cannot be assessed |
| cT0 | No evidence of primary tumor |
| cT1 | Tumor less than or equal to 7 cm in greatest dimension, limited to the kidney |
| cT1a | Tumor less than or equal to 4 cm in greatest dimension, limited to the kidney |
| cT1b | Tumor greater than 4 cm but less than or equal to 7 cm in greatest dimension limited to the kidney |
| cT2 | Tumor greater than 7 cm in greatest dimension, limited to the kidney |
| cT2a | Tumor greater than 7 cm but less than or equal to 10 cm in greatest dimension, limited to the kidney |
| cT2b | Tumor greater than 10 cm, limited to the kidney |
| cT3 | Tumor extends into major veins or perinephric tissues, but not into the ipsilateral adrenal gland and not beyond Gerota's fascia |
| cT3a | Tumor extends into the renal vein or its segmental branches, or invades the pelvicalyceal system, or invades perirenal and /or renal sinus fat but not beyond Gerota's fascia |
| cT3b | Tumor extends into the vena cava below the diaphragm |
| cT3c | Tumor extends into the vena cava above the diaphragm or invades the wall of the vena cava |
| cT4 | Tumor invades beyond Gerota's fascia (including contiguous extension into the ipsilateral adrenal gland ) |
Definition of Regional Lymph Node (N)
Clinical N (cN)| cN Category | cN Criteria |
|---|---|
| cNX | Regional lymph nodes cannot be assessed |
| cN0 | No regional lymph node metastasis |
| cN1 | Metastasis in regional lymph node(s) |
Definition of Distant Metastasis (M)- Clinical M (cN)
| cM Category | cM Criteria |
|---|---|
| cM0 | No distant metastasis |
| cM1 | Distant metastasis |
| pM1 | Microscopic evidence of distant metastasis |