Table 1. Primary Tumor (T)a,b,c
| pTX | Primary tumor cannot be assessed. |
| pT0 | No evidence of primary tumor (e.g., histologic scar in testis). |
| pTis | Intratubular germ cell neoplasia (carcinoma in situ). |
| pT1 | Tumor limited to the testis and epididymis without vascular/lymphatic invasion; tumor may invade into the tunica albuginea but not the tunica vaginalis. |
| pT2 | Tumor limited to the testis and epididymis with vascular/lymphatic invasion, or tumor extending through the tunica albuginea with involvement of the tunica vaginalis. |
| pT3 | Tumor invades the spermatic cord with or without vascular/lymphatic invasion. |
| pT4 | Tumor invades the scrotum with or without vascular/lymphatic invasion. |
| aReprinted with permission from AJCC: Testis. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 469-78. |
| bThe extent of primary tumor is usually classified after radical orchiectomy, and for this reason, a pathologic stage is assigned. |
| cExcept for pTis and pT4, extent of primary tumor is classified by radical orchiectomy. TX may be used for other categories in the absence of radical orchiectomy. |
