Anomalies peculiar to multiple gestations
Related Experiment Video
Updated: Aug 14, 2026

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas
Published on: September 5, 2011
1Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Sloane Hospital for Women, Columbia University College of Physicians and Surgeons, New York, New York, USA. fdm9@columbia.edu
Abstract:
Congenital anomalies occur twice as often in twin pregnancies as in singletons. In addition to the large range of structural malformations that are described in singleton fetuses, multiple gestations are at risk for additional anomalies that are unique to the twinning process. These unique anomalies include twin-twin transfusion syndrome, twin-reversed-arterial-perfusion syndrome, and conjoined twinning. This article reviews and describes each of these unique abnormal conditions in detail.
More Related Videos
Related Concept Videos
Multiple Allele Traits
Nondisjunction
Multiple Allele Traits
Meiosis vs. Mitosis
Before the start of mitosis and meiosis I, the cell synthesizes DNA, resulting in two homologous copies of each chromosome. DNA synthesis is...
Nondisjunction
Teratogenicity

