More so than any other area, ultrasound plays a crucial role in obstetric and gynecologic imaging. Because of the dangers of Ionizing radiation to a developing fetus, ultrasound provides a safe and effective way to image the pregnant patient. Included in the obstretric part of the issue are articles on imaging of fetal tumors, neural tube defects, and embryonic development. The gynecologic section reviews on imaging of adnexal torsion, pelvic inflammatory disease, and uterine myometrium.