Stage III cancer is more advanced. Growth of the cancer involves one or both ovaries, and the cancer has spread beyond pelvis. This stage is divided into three substages, A, B, and C:
Stage IIIA: microscopic cancer cells found in upper abdomen or lymph nodes.
Stage IIIB: visible tumor found in upper abdomen, less than 2 cm in size.
Stage IIIC: visible tumor found in upper abdomen, greater than 2 cm in size, including disease on surface of liver or spleen.