The staging of primary vaginal cancer covers all histological subtypes and is as follows
FIGO staging system
stage 0: carcinoma in situ
stage I: tumor confined to vagina
stage II: invasion of paravaginal tissues but no extension beyond pelvic side walls
stage III: extension to pelvic side walls and/or the lower one-third of vagina and/or has blocked the ureters causing hydronephrosis
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stage IV: spread beyond the true pelvis
stage IVa: invasion of bladder/rectal mucosa and/or extension beyond the true pelvis
stage IVb: distant metastatic disease