Table 5. Pathologic (pT)a,b
| pT2 | Organ confined. |
| pT2a | Unilateral, ≤½ of one side. |
| pT2b | Unilateral, involving >½ of side but not both sides. |
| pT2c | Bilateral disease. |
| pT3 | Extraprostatic extension. |
| pT3a | Extraprostatic extension or microscopic invasion of bladder neck.b |
| pT3b | Seminal vesicle invasion. |
| pT4 | Invasion of rectum, levator muscles, and/or pelvic wall. |
| p = Pathologic; T = Primary tumor. |
| Reprinted with permission from AJCC: Prostate. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 457-68. |
| aThere is no pathologic T1 classification. |
| bPositive surgical margin should be indicated by an R1 descriptor (residual microscopic disease). |
