Info from StatPearls: ✔️Conjoined twins refers to twins that are physically fused in utero and consequently at birth. ➡️It happens when a monozygotic twin pregnancy cleaves more than 13 days after fertilization. ➡️They are monochorionic (one placenta) and monoamniotic (one amniotic sac). ➡️They exist in a female to male ratio of 3 to 1. ✔️Conjoined twins can be broadly categorized into non-dorsally conjoined twins (which includes ventral, lateral, and caudal conjunction) and dorsally conjoined t

A family in Lawrence, Kansas hit the genetic jackpot, and now this rare set of twins is going home. The girls are a rare set of monoamniotic twins, commonly called ‘MoMo’ twins. They make up roughly 1 percent of identical twins and less than 0.1 percent of all pregnancies. “It means they share a placenta and share [an amniotic] sac and that is a very rare type of pregnancy,” said Dr. Thomas Lancaster, a neonatologist at Overland Park Regional Medical Center. Lancaster cared for Alijah throughout