Re A (conjoined twins) Re A (conjoined twins) Re A (conjoined twins) [2001] 2 WLR 480 is a Court of Appeal decision on the separation of conjoined twins. The case raised several legal, ethical and religious dilemmas including whether it would be permissible to kill one of the children to save the other, and whether it was permissible to act against the wishes of the twins' parents. Gracie and Rosie Attard, who were born on 8 August 2000, were conjoined twins who were joined at the abdomen. During legal proceedings, the twins were given the public pseudonyms "Jodie" and "Mary", respectively. The medical evidence
Monoamniotic twins Monoamniotic twins Monoamniotic twins are identical twins that share the same amniotic sac within their mother’s uterus. Monoamniotic twins are always identical, always monochorionic and are usually termed Monoamniotic-Monochorionic ("MoMo" or "Mono Mono") twins. They also share the placenta, but have two separate umbilical cords. Monoamniotic twins develop when an embryo does not split until after formation of the amniotic sac, at about 9-13 days after fertilization. Monoamniotic triplets or other monoamniotic multiples are possible, but extremely rare. Other obscure possibilities include multiples sets where monoamniotic twins are part of a larger gestation such as triplets, quadruplets, or more. Monoamniotic