Vanishing twin — Classification and external resources A fetus papyraceus shown with its umbilical cord next to the placenta of its dichorionic diamniotic twin. ICD 10 O … Wikipedia
vanishing twin syndrome — the disappearance of one fetus following the sonographic diagnosis of a twin pregnancy, with only one twin eventually being delivered; the vanished twin may be resorbed or incorporated into the placental membrane … Medical dictionary
Twin — Monozygotic ( identical ) twins A twin is one of two offspring produced in the same pregnancy.[1] Twins can either be monozygotic (in common parlance, identical ), meaning that they develop from one zygote that splits and forms two embryos, or… … Wikipedia
Twin, vanishing — The disappearance before birth of one twin. Of all twin pregnancies, 40% result in the birth of a single child. The other twin is lost. This is termed the vanishing twin phenomenon. A gene that influences the prenatal survival of dizygotic (non… … Medical dictionary
Parasitic twin — A parasitic twin (also known as an asymmetrical or unequal conjoined twin) is the result of the processes that produce vanishing twins and conjoined twins, and may represent a continuum between the two. Parasitic twins occur when a twin embryo… … Wikipedia
Baby Gender Mentor — The Baby Gender Mentor packaging advertises a controversial 99.9% accuracy rate and a 48 hour turn around time. Baby Gender Mentor is the trade name of a controversial blood test designed for prenatal sex discernment, that is, to determine… … Wikipedia
Chimera (genetics) — A chimeric mouse with its offspring A chimera or chimaera is a single organism (usually an animal) that is composed of two or more different populations of genetically distinct cells that originated from different zygotes involved in sexual… … Wikipedia
Conjoined twins — Siamese twins redirects here. For other uses, see Siamese twins (disambiguation). Conjoined twins Classification and external resources A painting of Chang and Eng Bunker, circa 1836 ICD … Wikipedia
Monochorionic twins — Various types of chorionicity and amniosity (how the baby s sac looks) in monozygotic (one egg/identical) twins as a result of when the fertilized egg divides Monochorionic twins are monozygotic (identical) twins that share the same placenta. If… … Wikipedia
Monoamniotic twins — Various types of chorionicity and amniosity (how the baby s sac looks) in monozygotic (one egg/identical) twins as a result of when the fertilized egg divides Monoamniotic twins are identical twins that share same amniotic sac within their… … Wikipedia
