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.

Mature teratomas are the most common type of ovarian germ cell tumour. They are non cancerous (benign). Mature teratoma is also often called an ovarian dermoid cyst. They are most common in women ...