CASE 105
History: An asymptomatic patient with a third-trimester pregnancy undergoes ultrasound imaging.
1. What should be included in the differential diagnosis of the cystic abnormality (depicted by cursors on Figures A and B) arising from the umbilical cord? (Choose all that apply.)
2. Which specific genitourinary anomaly is associated with an allantoic cyst?
B. Crossed fused ectopia of the kidneys
3. Which of the following statements is true?
A. Allantoic duct remnants are usually found at the placenta end of the cord.
B. Allantoic duct remnants are usually found at the fetal end of the cord.
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