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Background
Uterine leiomyomas, also called myomas or fibroids, are benign fibromuscular tumors of the myometrium and the most common gynecological and pelvic neoplasm. USG is the first-line imaging modality for any suspected structural anomaly of the female pelvis and for abnormal uterine bleeding. A classification for AUB was devised by the contribution of clinicians and researchers from 6 continents in 2011. In 2018, the classification was revised and this exhibit will review the latest classification in great depth.

Educational Goals / Teaching Points
Uterine fibroids (clinical presentation). Role of USG. Complementary imaging techniques. Revised FIGO classification (submucosal leiomyomas, intramural leiomyomas, subserosal leiomyomas, hybrid leiomyomas), MRI vs USG, differential diagnosis, limitations.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
Uterine fibroids, USG,and FIGO classification.

Conclusion
The FIGO classification is a helpful tool for clinicians to communicate and to decide the appropriate management of patients with leiomyomas. As USG is the standard method for diagnosis as well as the most accessible and appropriate modality in the initial management of these patients, a review of the FIGO classification with this technique is necessary. Radiologists should be familiar with the classification scheme being used by our ob-gyn colleagues and most importantly the differences in classification that will change patient management.