Ovarian Germ Cell Cancer

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2019-09-22
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Description

Ovarian germ cell cancers are malignancies that arise from germ cells of the embryonic gonad. Although benign germ cell tumors are relatively common, accounting for approximately 20% of all ovarian neoplasms, malignant ovarian germ cell tumors are rare. Weiss et al. (1977) estimated that less than 5% of ovarian cancers are of germ cell origin.

Inheritance

Jackson (1967) reported a Jamaican family in which grandmother, mother, and daughter developed ovarian cancer (167000); 2 tumors were known to have been dysgerminomas.

Stettner et al. (1999) found previous reports of 6 families in which more than 1 woman had a malignant germ cell tumor, and presented an additional ovarian germ cell cancer family in which a mother, her daughter, and her niece were affected. The affected niece was the offspring of the mother's sister, who had breast cancer. A review of 8 patients with ovarian germ cell malignancies identified 1 who had an uncle with testicular germ cell cancer (see 273300). Stettner et al. (1999) tabulated 6 other instances of familial germ cell malignancies in males and females.