This transverse transabdominal image of the gravid pelvis re…

This transverse transabdominal image of the gravid pelvis reveals an adnexal mass. The patient presented to the emergency room with a history of vaginal bleeding, hypertension, and excessive vomiting. Her human chorionic gonadotropin was markedly elevated. Within the uterus, a large complex mass with cystic components was identified. What is the most likely diagnosis?

A gravid 37-year-old patient presents to the ultrasound depa…

A gravid 37-year-old patient presents to the ultrasound department with a history of “small for dates.” Sonographic findings of the 28-week live intrauterine pregnancy include a sixth digit on the left hand, an occipital encephalocele, and bilateral enlarged echogenic kidneys. Which of the following would be most likely?