Massive edema of the ovary associated with hydrothorax and ascites

A 29-year-old woman with massive edema of the ovary which was grossly mistaken for neoplasia because it was associated with large volumes of both pleural effusion and ascites is described. The ovarian mass measured 10 X 10 X 8 cm and weighed 850 g. Total hysterectomy and bilateral salpingo-oophorectomy were performed. Microscopically, the ovary consisted of diffusely edematous stroma enveloping nests of hyperplastic theca cells or showing a loose myxomatous contexture. However, no endocrine activity of the ovary was demonstrated on the basis of laboratory endocrine values obtained by radioimmunoassay techniques.