What is the classification when hilar soft tissue invasion occurs beyond the rete testis?

The classification that indicates hilar soft tissue invasion beyond the rete testis is pT3. In the staging of testicular cancer, specific classifications are assigned based on the extent of tumor invasion.

When discussing pT classifications, it is critical to understand the definitions:

• pT1 denotes a tumor that is confined to the testis with no invasion beyond the tunica albuginea, which is not indicative of hilar soft tissue involvement.

• pT2 involves a tumor that invades the tunica albuginea and the epididymis but does not extend beyond these structures into the hilar soft tissue.

• pT0 indicates no evidence of primary tumor, which is not applicable in the context of invasion.

Therefore, the correct classification for hilar soft tissue invasion beyond the rete testis is pT3, as this denotes a more advanced local stage where the tumor has penetrated outside the limitations of the testis and its immediate attachments. This classification emphasizes a more aggressive disease presence and has implications for treatment and prognosis.