Bilateraliy was found in three patients (6%) and all were malignant in an advanced stage (stage III). In 44% of the patients, the tumors were between 6 and 15 cm. in greatest diameter (table 2 ). Seven patients had complications, five had twisted pedicles within the range of 6 to 15 cm in diameter; two were mature teratoma, two were cystadenoma , and one was a mixed germ cell tumor (dysgerminoa and endodermal sinus tumor ). Two patients had tumor perforation; one was mature reratoma and the other was mucinous cystadenocarcinoma.