Version May 2024
| Primary tumor (T) | |||
| T category | T criteria | ||
| TX | Primary tumor cannot be assessed | ||
| T0 | No evidence of primary tumor | ||
| Ta | Noninvasive papillary carcinoma | ||
| Tis | Urothelial carcinoma in situ: "Flat tumor" | ||
| T1 | Tumor invades lamina propria (subepithelial connective tissue) | ||
| T2 | Tumor invades muscularis propria | ||
| pT2a | Tumor invades superficial muscularis propria (inner half) | ||
| pT2b | Tumor invades deep muscularis propria (outer half) | ||
| T3 | Tumor invades perivesical soft tissue | ||
| pT3a | Microscopically | ||
| pT3b | Macroscopically (extravesical mass) | ||
| T4 | Extravesical tumor directly invades any of the following: Prostatic stroma, seminal vesicles, uterus, vagina, pelvic wall, abdominal wall | ||
| T4a | Extravesical tumor invades directly into prostatic stroma, seminal vesicles, uterus, vagina | ||
| T4b | Extravesical tumor invades pelvic wall, abdominal wall | ||
| Regional lymph nodes (N) | |||
| N category | N criteria | ||
| NX | Lymph nodes cannot be assessed | ||
| N0 | No lymph node metastasis | ||
| N1 | Single regional lymph node metastasis in the true pelvis (perivesical, obturator, internal and external iliac, or sacral lymph node) | ||
| N2 | Multiple regional lymph node metastasis in the true pelvis (perivesical, obturator, internal and external iliac, or sacral lymph node metastasis) | ||
| N3 | Lymph node metastasis to the common iliac lymph nodes | ||
| Distant metastasis (M) | |||
| M category | M criteria | ||
| M0 | No distant metastasis | ||
| M1 | Distant metastasis | ||
| M1a | Distant metastasis limited to lymph nodes beyond the common iliacs | ||
| M1b | Non-lymph-node distant metastases | ||
| Prognostic stage groups | |||
| When T is... | And N is... | And M is... | Then the stage group is... |
| Ta | N0 | M0 | 0a |
| Tis | N0 | M0 | 0is |
| T1 | N0 | M0 | I |
| T2a | N0 | M0 | II |
| T2b | N0 | M0 | II |
| T3a, T3b, T4a | N0 | M0 | IIIA |
| T1-T4a | N1 | M0 | IIIA |
| T1-T4a | N2, N3 | M0 | IIIB |
| T4b | Any N | M0 | IVA |
| Any T | Any N | M1a | IVA |
| Any T | Any N | M1b | IVB |
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