| Primary tumor (pT) |
| TX |
Primary tumor cannot be assessed |
| T0 |
No evidence of primary tumor |
| Clinically inapparent tumor neither palpable nor visible by imaging (T1) |
| T1a |
Tumor incidental histologic finding in ≤ 5% of tissue resected |
| T1b |
Tumor incidental histologic finding in > 5% of tissue resected |
| T1c |
Tumor identified by needle biopsy (e.g. because of elevated PSA) |
| Tumor confined within prostate (T2) |
| T2a |
Tumor involves one-half of one lobe or less |
| T2b |
Tumor involves more than one-half of one lobe but not both lobes |
| T2c |
Tumor involves both lobes |
| Tumor extends through the prostate capsule (T3) |
| T3a |
Extracapsular extension (unilateral or bilateral) |
| T3b |
Tumor invades seminal vesicle(s) |
| T4 |
Tumor is fixed or invades adjacent structures other than seminal vesicles such as external sphincter, rectum, bladder, levator muscles, and/or pelvic wall |
| Regional lymph nodes (pN) |
| NX |
Regional lymph nodes were not assessed |
| N0 |
No regional lymph node metastasis |
| N1 |
Metastasis in regional lymph node(s) |
| Distant metastasis (pM) |
| M0 |
No distant metastasis |
| M1 |
Distant metastasis |
| M1a |
Non-regional lymph node(s) |
| M1b |
Bone(s) |
| M1c |
Other site(s) with or without bone disease |
