Table 1.
2013 FIGO stage classification for ovarian cancer17
| FIGO stage | (TMN) | description |
|---|---|---|
| I | Tumor confined to the ovaries or fallopian tubes. | |
| - A | T1a N0 M0 | A: unilateral |
| - B | T1b N0 M0 | B: bilateral |
| - C | T1c N0 M0 | C: in one or both ovaries or fallopian tubes with (1) intraoperative surgical spill, (2) a ruptured capsule, or (3) malignant cells in the peritoneal washing or ascites |
| II | Primary peritoneal cancer or tumor in one or both ovaries or fallopian tubes with | |
| - A | T2a N0 M0 | A: Extension and/or implants on the uterus and/or fallopian tubes/ovaries |
| - B | T2b N0 M0 | B: Extension to other pelvic intraperitoneal tissues |
| III | Primary peritoneal cancer or tumor in one or both ovaries or fallopian tubes with | |
| - A | T3a NX M0 | A: (1) tumor positive retroperitoneal lymph nodes, (i |
| ) up to 10 mm in largest diameter or (ii) larger and/or (2) microscopic PM above the pelvic brim | ||
| - B | T3b NX M0 | B: macroscopic PM beyond the pelvis up to 2 cm in largest diameter |
| - C | T3c NX M0 | C: macroscopic PM beyond the pelvis more than 2 cm in largest diameter |
| IV | Distant metastases excluding PM | |
| - A | TX NX M1 | A: tumor positive pleural effusion |
| - B | TX NX M1 | B: Parenchymal metastases and metastases to extra abdominal organs (including inguinal lymph nodes and lymph nodes outside of the abdominal cavity) |