Review Question - QID 213723

A 32-year-old woman presents to her obstetrician for concern of vaginal bleeding. The patient is gravida 2 parity 1, and her last menstrual period was approximately 18 weeks ago. The patient has not previously presented for prenatal care. The patient’s first pregnancy was uncomplicated, and delivery occurred at home. On exam, approximately 100 cc of blood was found in the vaginal canal. The fundal height was determined to be 25 cm. Transvaginal ultrasound demonstrates a heterogenous mass in the uterine cavity with multiple anechoic spaces. The decision was made to perform a dilation and curettage. The patient’s postoperative course was uncomplicated. Which of the following is a characteristic feature of this patient's clinical presentation?