What is the most common type of conjoined twin?
Conjoined twins or Siamese twins are monozygotic twins, formed when the twinning of the embryo occurs after 12 days of feilization. Thoracopagus- fusion of thorax (most common type) Xiphopagusoromphalopagus- fusion of anterior abdominal wal Pygopagus- posterior fusion Ischiopagus - caudal fusion Craniopagus- fusion of cranium Rachipagus- dorsal fusion 6
Craniopagus
Thoracopagus
Ischiopagus
Pygopagus
Twin Pregnancy, Molar Pregnancy, Gestational Trophoblastic disease and contraception in special situations (Sour Grapes!)