A 30-year-old nulligravid woman presents for Gynecology consultation after an incidental finding of left adnexal mass on pelvic ultrasound (US). She initially presented to her primary care provider with increased heaviness and duration of menstrual periods following copper intrauterine device (IUD) placement. Pelvic US was obtained to assess the IUD, which was appropriately placed. However, she was noted to have a left-sided, complex ovarian cyst measuring 6 cm. Pelvic magnetic resonance imaging (MRI) was obtained for further assessment of the indeterminate adnexal mass. She has no pelvic pain, early satiety, abdominal bloating or distention, changes in bowel or bladder function. She desires future fertility. Last menstrual period was in the week prior to consultation. She is healthy with no past medical or surgical history and no known drug allergies. Family history is negative for any malignancies, specifically ovarian, uterine, colon, or breast cancers.