A 25-year-old woman presents to the clinic complaining of vaginal bleeding and abdominal pain. She reports missing her last menstrual period and experiencing nausea and vomiting. On physical examination, the uterus is enlarged for gestational age. A pelvic ultrasound is performed, revealing a heterogeneous, complex mass within the uterine cavity. It reveals no fetal parts. Laboratory tests confirm elevated levels of human chorionic gonadotropin (hCG). You suspect a complete molar pregnancy. Which of the following is NOT a typical feature of a complete molar pregnancy?
