Left adnexa
Sexually active, 30 years old, left pelvic pain; ?-HCG negative

Answers
Tubo-ovarian Abscess

• Transvaginal images of a large, complex cystic mass (calipers) representing a tubo-ovarian abscess
• Right- Transvaginal image of the abscess after 1 month of antibiotics shows that the complex mass (arrows) is smaller but still contains complex fluid
• Knowing pregnancy status is key in evaluating a lesion like this