Table 37.2. FIGO staging of ovarian cancer

Table 37.2. FIGO staging of ovarian cancer.
Designation	Definition
Stage I	Cancer limited to the ovaries
IA	Growth limited to one ovary, capsule intact, no malignant ascites, no tumor on external surface
IB	Growth limited to both ovaries, capsule intact, no malignant ascites, no tumor on external surface
IC	As for IA or IB but with surface growth, ruptured capsule (before or during surgery), positive washings, or malignant ascites
Stage II	Growth involving one or both ovaries with pelvic extension
IIA	Extension and/or metastases to the uterus and/or tubes
IIB	Extension to other pelvic organs
IIC	As for IIA or IIB but with surface growth, ruptured capsule (before or during surgery), positive washings, or malignant ascites
Stage III	Tumor involving one or both ovaries with peritoneal implants outside the pelvis and/or positive retroperitoneal or inguinal nodes; liver capsule involvement
IIIA	Tumor grossly limited to the true pelvis with negative nodes but microscopic seeding of abdominal peritoneal surfaces
IIIB	Abdominal peritoneal implants, but none exceeding 2 cm; nodes negative
IIIC	Abdominal peritoneal implants larger than 2 cm and/or positive retroperitoneal or inguinal nodes
Stage IV	Tumor involving one or both ovaries with distant metastases; pleural effusions must be demonstrated to harbor malignant cells; liver parenchymal involvement