Dysgerminomas Stage Ia Standard Treatment The involved ovary and fallopian tube are removed. Surgical staging is performed with particular attention to the pelvic and para-aortic lymph nodes . Women with Stage Ia disease require no further treatment. About 20 percent of women will have disease in the opposite ovary (Stage Ib). For women who do not desire more children or who are approaching menopause, a hysterectomy and removal of both tubes and both ovaries is performed. Investigational None. Stage Ib Standard Treatment Women with this stage of disease are usually treated with three courses of cisplatin , bleomycin and etoposide or whole-abdominal radiation therapy after hysterectomy, removal of both fallopian tubes and ovaries and meticulous surgical staging. Investigational • Combinations of chemotherapy including carboplatin and ifosfamide .