Malignant germ-cell tumors of the ovary are rare and can be treated with ... Patients who underwent postsurgical observation and those with yolk-sac tumor had an increased risk of relapse.

The stage of a cancer tells you how far it has grown. For ovarian germ cell cancers, doctors use the same staging system that they use for other types of ovarian cancer. There are 4 stages, from 1 to ...