Testicular cancer staging

Staging
After removal, a testicular tumor is staged by a pathologist according to the TNM Classification of Malignant Tumors as published in the AJCC Cancer Staging Manual. Testicular cancer is categorized as being in one of three stages (which have subclassifications). The size of the tumor in the testis is irrelevant to staging. In broad terms, testicular cancer is staged as follows:
 * Stage I: the cancer remains localized to the testis.
 * Stage II: the cancer involves the testis and metastasis to retroperitoneal and/or Paraaortic lymph nodes (lymph nodes below the diaphragm).
 * Stage III: the cancer involves the testis and metastasis beyond the retroperitoneal and Paraaortic lymph nodes. Stage III is further subdivided into nonbulky stage III and bulky stage III.