O-RADS for ultrasound is a lexicon combined with a risk stratification and management system which can be applied to lesions involving the ovary and adnexa. This is the only risk stratification system which is paired with a management system allowing for consistent care in women with adnexal lesions.The use of a lexicon aims to improve the quality of communication between interpreting radiologists and referring clinicians.The consistent use of O-RADS is intended to decrease number of interventions for ovarian and adnexal lesions which are destined to resolve or remain stable whilst increasing appropriate referrals to a gynecologic oncologist for those with high risk of malignancy. Appropriate referral to a gynecologic oncologist has been demonstrated to decrease morbidity and improve survival in women with high grade ovarian malignancy.The use of an experiential case approach, based on O-RADS ,following a simple algorithm will familiarize users with the practical aspects of the system, enable avoidance of pitfalls and emphasize key knowledge points. This practical exercise will help the imager to make the best use of the system in daily practice.

1, Introduction to the ORADS for US Risk Stratification and Management System.2. Case Examples Beginner Level.3. Case Examples Intermediate Level.4. Case Examples Expert Level.5. Summary