How would you approach the adjuvant treatment of a stage IVA adenosarcoma of the ovary?

Adenosarcomas have a benign/low grade epithelial component, unlike carcinosarcoma/sarcomatoid carcinoma. The sarcomatous component is the high grade element driving prognosis, so therapy should be directed a'la sarcoma based on usual predictive factors of age, PS, organ function, etc.