Introduction

Nonepithelial cancers of the ovary are uncommon. They include malignancies of germ cell origin, sex cord-stromal cell origin, metastatic carcinomas to the ovary, and a variety of extremely rare ovarian cancers, such as sarcomas and lipoid cell tumors (

Figure 118-7). Nonepithelial malignancies account for about 10% of all ovarian cancers. Although there are many similarities in the presentation, evaluation, and management of these patients, there are also many unique qualities of these tumors that require a special approach. This is particularly true because many more nonepithelial lesions are germ cell in origin, and they are usually found in young patients.