1. Conclusions The differential level of dysgerminoma and embryonal carcinoma approximates the stages of gonocyte and blastocyst.

2. The gross and microscopic appearance of an ovarian dysgerminoma is essentially the same as a seminoma of the testis in a male.

3. Conclusion The prognosis of ovarian dysgerminoma is closely related to clinical staging and treatment modality.

4. Objective To study the reasonable treatment of dysgerminoma of ovary.

5. There were 15 cases of ovarian dysgerminoma treated at Taipei and Kaohsiung Veteran General Hospitals from 1971to 1993.

6. This is an ovarian dysgerminoma that has been sectioned into two halves.

7. Result To study patients, 20 immature teratoma (IT), 11 endodermal sinus tumor, 8 dysgerminoma, 6 mixed germ cell tumors.

8. Objective To understand the clinical and pathological characteristics, and prognosis of ovarian dysgerminoma were well acquired for further improvement in medical management.

9. The aim of this study is to investigate the clinical features and factors related to prognosis of ovarian dysgerminoma.