Images in neonatal medicine
Getting knotted: umbilical knots in a monochorionic monoamniotic twin pregnancy
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True umbilical knots occur in about 1% of all pregnancies and are more common with long cords, grandmultiparity, male fetuses, polyhydramnios and monoamniotic twins.1 Figure 1 shows complex umbilical knotting in a monochorionic monoamniotic twin …