DISEASE CHARACTERISTICS: Histologically confirmed stage IIB, III, or IV ovarian epithelial carcinoma, fallopian tube, or extraovarian papillary serous carcinoma extending to the ovary No mixed epithelial/non-epithelial tumors (e.g., mixed Mullerian tumors) No tumors of low malignant potential (e.g., borderline tumors) No symptomatic brain metastases