<prompt> High inguinal orchidectomy specimen showed Teratoma testis with involvement of epididymis; stage is:T1T2T3T4b  <response>: 8th AJCC 2017 TNM STAGING FOR TESTICULAR TUMORS T: Primary Tumor N: Regional Lymph nodes p Tis: Intratubular germ cell neoplasia carcinoma in situ N1: LN mass cm or multiple LN masses, none 2 cm pT1: Limited to the testis epididymis and no vascular lymphatic invasion; Tumor may invade tunica albuginea but not tunica vaginalis N2: LN mass, 2 cm but 5 cm or multiple LN masses, any one mass 2 cm but not 5 cm pT2: Limited to the testis epididymis with vascular lymphatic invasion or extending through tunica albuginea with involvement of tunica vaginalis. N3: LN mass 5 cm pT3: Invades the spermatic cord with or without vascular Lymphatic invasion M: Distant metastases pT4: Invades the scrotum with or without vascular lymphatic invasion M1: Non-regional nodal or pulmonary metastases M2: Non-pulmonary visceral masses 