Early fetal demise of one embryo in a multiple pregnancy is called what?

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Multiple Choice

Early fetal demise of one embryo in a multiple pregnancy is called what?

Explanation:
Vanishing twin syndrome is the loss of one embryo in a multiple pregnancy during early gestation. When more than one embryo is present, one may stop developing and be resorbed, so the pregnancy continues with the surviving fetus. On ultrasound, you might initially see two embryos or sacs, then later only one remains, sometimes with little or no residual tissue. This is different from conjoined twins, which result from incomplete splitting and remaining physically connected, and from monochorionic, which describes a shared placental arrangement rather than the demise of a twin.

Vanishing twin syndrome is the loss of one embryo in a multiple pregnancy during early gestation. When more than one embryo is present, one may stop developing and be resorbed, so the pregnancy continues with the surviving fetus. On ultrasound, you might initially see two embryos or sacs, then later only one remains, sometimes with little or no residual tissue. This is different from conjoined twins, which result from incomplete splitting and remaining physically connected, and from monochorionic, which describes a shared placental arrangement rather than the demise of a twin.

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