monoamniotic twins

There are three different kind of twins: Dizygotic, Monzozygotic, Polar Body Twins. All dizygotic are dichorionic, and 2/3 of monozygotic are monochorionic.

Researchers from the Osaka Medical Center recently published a study in the Journal of Obstetrics and Gynaecology Research reviewing the most common complications and causes of fetal risk/death in cases of MM twins.