Journal of Korean Society of Medical Ultrasound 1997;16(2): 159-163.
Ultrasonography of Multioculated Cystic Ovarian Masses: MOrphologic Differentiation between Tumorous and Nontumorous Lesions.
Hyung Jin Won, Seung Hyup Kim, Seok Joon Kim, Yun Ku Cho, Hak Jong Lee, Joon Koo Han, Hyung Ihn Choi
Department of Radiology, Seoul National University College of Medicine, Korea.
  Published online: January 1, 2001.
ABSTRACT
PURPOSE: To find and evaluate differentiation point between tumorous and nontumorous lesions in multiloculated cystic ovarian masses by morphologic analysis. MATERIALS & METHODS: Without knowledge of clinical data and postoperative pathologic diagnosis, ultrasonographic findings of multiloculated cystic ovarian masses in 54 patients were morphologically analyzed and classified into two types, i. e. type A (multiloculated septated form suggesting tumorous condition) and type B (multiple aggregated form suggesting nontumorous condition). Morphological classification was compared with pathologic diagnosis in all cases. RESULTS: Of the 54 cases, 28 cases were tumorous lesions : serous cystadenoma(n=2) serous cystadenocarcinoma(n=2) teratoma(n=6); mucinous cystadenoma (n=11) mucinous cystadenocarcinoma(n=2) malignant Brenner tumor(n=2) metastasis(n=1) clear cell carcinoma(n=1) degenerated myoma(n=1), Remaining 26 cases were nontumorous lesions : functional cyst(n=9) endometriosis (n=13) tuboovarian abscess(n=3) inflammatory pseudocyst(n=1). In type A cases(n=28), true tumorous lesions were 25 cases and true nontumorous lesions were 3. In type B cases(n=26), true nontumorous lesions were 23 case and true tumorous lesions were 3. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of tumor diagnosis were 89%, 88%, 89%, 88% and 89%, respectively. CONCLUSION: Morphological analysis of multilocular pattern can be helpful and convenient method in ultrasonographic differential diagnosis between tumorous and nontumorous multiloculated ovarian masses.
Keywords: Ovary neoplasms; Ovary abscess; Ovary cysts; Ovary US
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