FIGO system for ovarian cancer
Most ovarian cancers are staged using the FIGO system. FIGO uses surgical results to determine the extent of the primary tumor (T), whether the cancer is present in the lymph nodes (N) and whether the cancer has metastasized (M) to other parts of the body, such as the liver, bones or brain. Once a patient’s T, N and M categories have been assigned, the information is used to stage the cancer according to a particular group, which is denoted by Roman numerals and subcategorized.
This system is also used to stage fallopian tube cancer and primary peritoneal cancer.