THE RISK OF MALIGNANCY WITH AN APPARENTLY SIMPLE ADNEXAL CYST ON ULTRASOUND

We received data of 144 patients, who had been operated upon in the 2n d Department of Obstetrics and Gynecology in Vienna because of persist ing sonographically detected ''simple'' adnexal cysts. Only 3 cysts we re malignant (one of them borderline). All three patients were postmen opausal. The mean diameter of the malignant cysts were 7, 11 and 18 cm , respectively. 82 sonographically simple cysts were histologically be nign. We found 27 cysts associated with chronic pelvic sepsis (hydrosa lpinx and pseudocysts), 22 were benign cystadenomas and 10 were endome triotic.