Stage I | Tumor limited to ovaries or fallopian tubes |
Stage IA | Tumor limited to one ovary or fallopian tube; no tumor on ovarian or fallopian tube surface; no malignant cells in ascites or peritoneal washings |
Stage IB | Tumor limited to both ovaries or fallopian tubes; no tumor on fallopian tube or ovarian surface; no malignant cells in ascites or peritoneal washings |
Stage IC | Tumor limited to one or both ovaries or fallopian tubes; with IC1: surgical spill IC2: capsule ruptured before surgery or tumor on ovarian or fallopian tube surface IC3: malignant cells in ascites or peritoneal washings |
Stage II | Tumor involves one or both ovaries or fallopian tubes with pelvic extension (below pelvic brim) or primary peritoneal cancer |
Stage IIA | Extension and/or implants on uterus and/or fallopian tubes and/or ovaries |
Stage IIB | Extension to other pelvic intraperitoneal tissues |
Stage III | Tumor involves one or both ovaries or fallopian tubes, or primary peritoneal cancer with histologically confirmed spread to peritoneum or outside pelvic and/or metastasis to retroperitoneal lymph nodes |
Stage IIIA1 | Positive retroperitoneal lymph nodes only IIIA1 metastasis up to 10 mm in greatest dimension IIIA2 metastasis > 10 mm in greatest dimension |
Stage IIIA2 | Microscopic extrapelvic (above pelvic brim) peritoneal involvement with or without positive retroperitoneal lymph nodes |
Stage IIIB | Macroscopic peritoneal metastasis beyond pelvis up to 2 cm in greatest dimension, with or without metastasis to retroperitoneal lymph nodes |
Stage IIIC | Macroscopic peritoneal metastasis beyond pelvis > 2 cm in greatest dimension, with or without metastasis to retroperitoneal lymph nodes (includes extension of tumor to capsules of liver and spleen without parenchymal involvement of either organ |
Stage IV | Distant metastasis excluding peritoneal metastasis |
Stage IVA | Pleural effusion with positive cytology |
Stage IVB | Parenchymal metastases and metastases to extra abdominal organs (inguinal lymph nodes and lymph nodes outside abdominal cavity |