P27.05: The role of ultrasound in ovarian masses

Abstract

Electronic poster abstractsMethods: A total of 87 patients were included in the study. Pattern recognition analysis and color Doppler blood flow location were used for establishing the initial diagnosis. Then the GI-RADS was used, with the following classifications: GI-RADS 1, definitively benign; GI-RADS 2, very probably benign; GI-RADS 3, probably benign; GI-RADS 4, probably malignant; and GI-RADS 5, very probably malignant. Patients with GI-RADS 1 and 2 tumors were treated expectantly and not included in the study. All GI-RADS 3, 4, and 5 tumors were removed surgically. Serum concentration of CA125 was measured for each patient before surgical operation. The definitive diagnosis of the adnexal pathology was confirmed by the pathological examination of the excised lesions. Results: The mean age of the patients was 44,5 years. Malignant disease was diagnosed in 17 cases (19,54%) and non-malignant disease was diagnosed in 70 cases (80,64%). The sensitivity GI-RADS and CA125 was 88,24% and 82,35% respectively. The specificity was 90% and 65,71% respectively. The positive predictive value was 68,18% and 36,84% respectively. The negative predictive value was 96,92% and 93,88% respectively. Conclusions: GI-RADS has higher sensitivity, specificity, positive and negative predictive values than CA125 in the preoperative assessment of adnexal tumors. P27.03Risk of malignancy index in pre-operative evaluation of borderline ovarian tumors Objectives: To assess the use of risk of malignancy index (RMI) in primary evaluation of patients diagnosed as having a borderline ovarian tumor (BOT). Methods: Retrospective study of RMI index of all patients histologically diagnosed as having a BOT in our hospital over a period of ten years. RMI was calculated using the product of the ultrasound score (U), the menopausal score (M), and the absolute value of serum CA-125 inserted in the following formula: RMI = U x M x serum CA-125. The ultrasound result (U) is scored 1 point for each of the following characteristics: multilocular cysts, solid areas, metastases, ascites and bilateral lesions. U = 0 (for an ultrasound score of 0), U = 1 (for an ultrasound score of 1), U = 3 (for an ultrasound score of 2-5). Postmenopausal status scored M = 3, while premenopausal condition scored M = 1. The absolute value of serum CA-125 was entered directly into the mentioned equation. A RMI cut-off level of 200 was accepted as positive for malignancy. Results: Twenty nine women were found to have BOT. Nineteen (65.5%) were premenopausal, and the majority of cases were unilateral (86.2%). In overall, the most frequent sonographic pattern associated to BOT was multilocular solid cyst (44.8%). Preoperative CA 125 levels were higher than 35 U/ml in 34.4% of BOT. When a cut-off value of 200 was used, RMI only detected 27.5% (8/29) of BOT (6/10; 60% of postmenopausal women and 10.5 % (2/19) of premenopausal ones). Conclusions: RMI is not a suitable tool for the detection of BOT.P27.04 A case of tubo-ovarian abscess in a pregnant woman Y. Kim, J. Kim, T. Song ...