Tumor characteristics and outcome of uterine carcinosarcoma in women aged ≥80 years

•Women aged ≥80 account for ∼10% of uterine carcinosarcoma.•Tumors of women aged ≥80 exhibit high-grade carcinoma and heterologous sarcoma.•Women aged ≥80 are likely to undergo simple hysterectomy without lymphadenectomy.•Women aged ≥80 are less likely to receive postop chemotherapy/radiotherapy.•Postop therapy but not lymphadenectomy may improve survival in women aged ≥80.