A primiparous who was scanned at 28 weeks and rescanned at 32 weeks
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Scanned at 28 weeks of gestation and 32 weeks of gestation.
Increasing polyhydramnios noted.
Single umbilical artery.
Stomach fluid was always absent.
Fetal neck showed fluid filled pouch posterior to trachea. This pouch filled up and emptied during scan. 3 times during 45 minute scan time at 28 weeks and 2 times during a 30 minute scan time at 32 weeks.