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What is High inguinal orchidectomy specimen showed Teratoma testis with involvement of epididymis; stage is: and explain in detail?
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