Ovarian carcinoma is staged at surgery. Stages are usually defined according to the classification system devised by FIGO (International Federation of Gynecology and Obstetrics). The TNM system corresponds to the stages accepted by FIGO.
Stage I Cancer is confined to one or both ovaries.
• Ia Cancer is limited to one ovary. There is no ascites and no tumor on the surface of the ovary and the surface
of the tumor is unruptured.
• Ib The cancer is limited to both ovaries. There is no ascites and no tumor on the surface of either ovary and
the surfaces of the tumors are unruptured.
• Ic The cancer is either Stage Ia or Ib and one or more of the following apply: there is tumor on the surface of
one or both ovaries, at least one of the tumors has ruptured, ascites is present or the abdominal washings
contain malignant cells .
Five-Year Survival 60 to 100 percent, depending on the histologic type, grade and sub-stage
