Nonepithelial Ovarian Cancer
Uncommon Ovarian Tumors
There are several types of rare malignant ovarian tumors that together compose about 0.1% of ovarian malignancies. These…
Choriocarcinoma of the Ovary
Pure nongestational choriocarcinoma of the ovary is an extremely rare tumor. Histologically, it has the same appearance as…
Mixed Germ-Cell Tumors
Mixed germ-cell malignancies of the ovary contain two or more elements of the lesions described above. In one…
Sex Cord-Stromal Tumors
Sex cord stromal tumors of the ovary account for about 5% to 8% of all ovarian malignancies. This…
Granulosa-Stromal Cell Tumors
This group of tumors includes granulosa cell tumors, thecomas, and fibromas. The granulosa cell tumor is a low-grade…
Embryonal Carcinoma
Embryonal carcinoma of the ovary is an extremely rare tumor. It can be distinguished from a choriocarcinoma by…
Endodermal Sinus Tumors
Endodermal sinus tumors (EST) have also been referred to as yolk sac carcinomas, because they are derived from…
Nonepithelial Ovarian Cancer Diagnosis
When an adnexal mass is 2 cm or larger in a premenarchal female, or 8 cm or larger…
Dysgerminomas
Dysgerminomas are the most common malignant germ cell tumors, accounting for about 30% to 40% of all ovarian…
Immature Teratomas
Immature teratomas contain elements resembling tissues derived from the embryo. Immature teratomatous elements may occur in combination with…
Germ Cell Malignancies
Germ cell tumors are derived from the primordial germ cells of the ovary. Whereas malignant germ cell tumors…
Nonepithelial Ovarian Cancer
Introduction
Nonepithelial cancers of the ovary are uncommon. They include malignancies of germ cell origin, sex…
