Abstract
The sonographic findings of histologically proven 160 cystic masses of ovary were analized to find helpful diagnostic sign. The results were as follows: 1. The bilateralities were identified in 1 serouscystadenocarcinoma(33%), 2 mucinous cystadenocarcinoms(40%), & 2 dermoid cysts(5%). 2. 76% of serous cystadenoma were homogenous cystic masses. 3. 64% of mucinous cystadenoma wre cystic masses with internal septatio (7 daughtercysts), & 5 mucinous cystadenomas were showed multiple homogenous low level echoes within it. 4. 64% of dermoidcyst revealed strong echogenic solid component within the upper part of the cyst. 5. 80% of corpus luteal cystwere mainly cystic lesion with several low-level internal echoes. 6. 80% of malignant ovarian mass revealedirregular, thick internal septations & irregualr inhomogenous internal solid components within it.