History and images

History: A 31-year-old woman presented with worsening pelvic pain. Her last menstrual period was five weeks prior. Quantitative beta-HCG was 154 mIU/mL.

Grayscale images from transvaginal ultrasound of right ovary, uterus, and left ovary are given below. In addition, color Doppler image of the right ovary is also shown. Click images to enlarge.