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Stage IVA includes: (T1/T2, N3, M0); (T3, Any N, M0). T1: Invasive vulvar cancer confined to the vulva or perineum. T2: Vulvar cancer with tumor of any size with extension to adjacent perineal structures (lower/distal 1/3 urethra, lower/distal 1/3 vagina, anal involvement). T3: Vulvar cancer with tumor of any size with extension to any of the following: upper/proximal 2/3 urethra, upper/proximal 2/3 vagina, bladder mucosa, rectal mucosa, or fixed to pelvic bone. N3: Vulvar cancer with fixed or ulcerated regional lymph node metastasis. M0: No distant metastasis. (AJCC 7th ed.)
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