Transient Fetal Hydrops and Prune Belly in One Identical Female Twin

"PRUNE BELLY" refers to the lax, wrinkled abdomen of abdominal-muscle hypoplasia. It is most common in males and is usually accompanied by urinary-tract abnormalities.1 Its cause is a subject of debate.2 We report on identical female twins discordant for prune belly. Ultrasound showed transient fetal hydrops in the affected child. Postnatal studies suggested a twin–twin transfusion as the cause of the anasarca, which apparently affected the abdominal musculature. The urinary tract was normal. This unusual experiment of nature offers some insights into this rare condition.Case ReportsTwin AThe weight of the firstborn girl was 1.52 kg, her length . . .