Ovarian Cancer Stage II: Tumor involves one or both ovaries with extension to pelvis
Reviewed by Oncology Team, HealOnco | Last updated: 2026-04
What Stage II: Tumor involves one or both ovaries with extension to pelvis Means
IIA (extends to uterus/fallopian tubes); IIB (extends to other pelvic structures). Rare at diagnosis (5-10% of cases).
Treatment Approach for Stage II: Tumor involves one or both ovaries with extension to pelvis
Optimal surgery (total hysterectomy, bilateral salpingo-oophorectomy, omentectomy) followed by platinum-based chemotherapy (6 cycles of carboplatin + paclitaxel).
Survival Rates and Prognosis
The 5-year survival rate for ovarian cancer at Stage II: Tumor involves one or both ovaries with extension to pelvis is approximately 70-80% 5-year survival. Survival rates are statistical averages drawn from large patient populations and may not reflect your individual outcome. Factors that influence your specific prognosis include your age, overall health, tumour biology, and how well the cancer responds to treatment.
Important: These numbers are drawn from historical data. Newer treatments available today may improve outcomes beyond what published statistics show. Discuss your individual prognosis with your oncologist.
How Other Stages Compare
| Stage | 5-Year Survival | Treatment |
|---|---|---|
| Stage I: Tumor confined to ovaries | 90-95% 5-year survival | Surgery (unilateral salpingo-oophorectomy or total abdominal hysterectomy +… |
| Stage III: Tumor involves one or both ovaries with peritoneal spread outside pelvis or positive retroperitoneal/inguinal lymph nodes | 40-50% 5-year survival with optimal treatment | Neoadjuvant chemotherapy (3 cycles) followed by debulking surgery, then… |
| Stage IV: Distant metastases (hepatic parenchyma, lung, pleura, brain, etc.) or positive pleural effusion cytology | 10-20% 5-year survival with multimodal therapy | Palliative chemotherapy (carboplatin + paclitaxel + bevacizumab), targeted… |
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