Choriocarcinoma of the ovary in a post-menopausal woman.

A case of a Choriocarcinoma of the Ovary has been reported in a 50 year old post-menopausal woman. At laparotomy, the lesion was seen as a large necrotic ovarian mass. The problems of distinguishing Gestational from Non-gestational ovarian choriocarcinoma are discussed. Cytogenetic studies are indicated to investigate potential reasons for the difference in prognosis.