Embryology USMLE Step 1 Practice Question
A patient comes to the physician for a prenatal visit. Examination reveals that her uterus is considerably larger than her gestational age would predict. An ultrasound examination is ordered and reveals that she has polyhydramnios. Which of the following congenital defects of the fetus would be most likely to be associated with this abnormality?
Answer choices
- AAtrial septal defect
- BMeckel diverticulum
- CEsophageal atresiaCorrect answer
- DLung hypoplasia
- ERenal agenesis
- FTracheoesophageal fistula without esophageal atresia
See the full explanation
Get the correct-answer rationale, why each distractor is wrong, the underlying mechanism, and high-yield associations — plus adaptive practice that targets your weak areas — with a free MedBoardPRO account.