O-RADS for Ultrasound: A User's Guide, From the AJR Special Series on Radiology Reporting and Data Systems.

The Ovarian-Adnexal Reporting and Data System (O-RADS) is a lexicon and risk stratification tool designed for the accurate characterization of adnexal lesions and is essential for optimal patient management. O-RADS is a recent addition to the American College of Radiology (ACR) reporting and data systems and consists of ultrasound (US) and MRI arms. Since most ovarian or adnexal lesions are first detected with US, O-RADS US is considered the primary assessment tool. Application of O-RADS US is recommended whenever a nonphysiologic lesion is encountered. Lesion characterization may be streamlined by use of an algorithmic approach focused on relevant features and an abbreviated version of the lexicon. Resources to expedite O-RADS US categorization and determination of a management recommendation include easy online access to the ACR color-coded risk stratification scorecards and an O-RADS US calculator that is available as a smartphone app. Reporting should be concise and include relevant features for risk stratification that adhere to lexicon terminology. Technical considerations include optimization of gray-scale and color Doppler technique and performance of problem-solving maneuvers to help avoid common pitfalls. This review provides a user-friendly summary of O-RADS US with practical tips for everyday clinical use.

Sonographic findings of early pregnancy in the rudimentary horn of a unicornuate uterus: A two case report.

Congenital uterine anomalies have a profound impact on reproductive outcomes. The unicornuate uterus accounts for approximately 20% of all congenital uterine anomalies. Unicornuate uterine anomalies with non-communicating rudimentary horns are at risk of developing ectopic pregnancy in the rudimentary horn. Given increased risked of uterine rupture, rudimentary horn pregnancies pose significant maternal health risks. Understanding the sonographic appearance of early pregnancy within the rudimentary horn of the unicornuate uterine configuration is imperative for appropriate and timely clinical management. We present two cases of pregnancy in the rudimentary horn of a unicornuate uterus diagnosed sonographically in the first trimester.