OP21.07: Gray‐scale ultrasound and Ca‐125 levels for diagnosing ovarian cancer in more than 1700 women

Objectives: To investigate the contribute of sonographic followup in the clinical management of incidental unilocular >5 cm and multilocular ovarian cysts 5 cm and multilocular ovarian cysts ( 50%) and/or sonographic parameters. Demographic, sonographic and pathologic data were recorded. Results: Median age (IR) was 70 years (61–75). Median years after menopause (IR) were 23 (12–27). Mean BMI (±SD) was 27 kg/m2 ±5. Mean parity (±SD) was 2 ± 1. 5 women reported bilateral cysts. 39 cysts were unilocular, 28 multilocular. Median cyst diameter (IR) of unilocular and multilocular ovarian cysts was 55 mm (50–62) and 42 mm (30–57), respectively. The median follow-up period was 24 months (11–46). Surgery was performed in 9 cases: 2 dropout and 7 volume changes. No malignant lesions were reported at histology. Conclusions: Sonographic follow-up might be a useful option in the clinical management of incidental unilocular >5 cm and multilocular ovarian cysts <7 cm in post-menopausal women. Larger and longer multicentres studies with strict sonographic parameters are needed to support this potentially safe conservative management.