38 一位75歲女性，陰道間斷出血有2年之久，最近因為左側骨盆疼痛來婦產科求診，經檢查為陰道癌3公分位於上1/2陰道處，切片之細胞型態為鱗狀上皮癌（squamous cell carcinoma），內診發現腫瘤侵犯左側骨盆壁（pelvic side wall），膀胱及直腸沒有侵犯，此病患最有可能之期別為：

stage I stage II stage III stage IV

C

• Stage 0 or carcinoma in situ
  Stage 0 cancer of the vagina is a very early cancer. The cancer is found inside the vagina only and is in only a few layers of cells.

• Stage I
  Cancer is found in the vagina, but has not spread outside of it.

• Stage II
  Cancer has spread to the tissues just outside the vagina, but has not gone to the bones of the pelvis.

• Stage III
  Cancer has spread to the bones of the pelvis. Cancer cells may also have spread to other organs and the lymph nodes in the pelvis. (Lymph nodes are small bean-shaped structures that are found throughout the body. They produce and store cells that fight infection.)

• Stage IVA
  Cancer has spread into the bladder or rectum.

• Stage IVB
  Cancer has spread to other parts of the body, such as the lungs.