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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