A case of thoracogastropagus diagnosed before delivery

The subject was a 29-year-old pregnant woman whose fetuses were a conjoined twin. We diagnosed the fetuses as a conjoined twin by ultrasonography at the 12th week of gestation. The patient and her family wanted living infants and hoped that they were separated surgically. We consulted with the doctors of pediatric surgery and cardiovascular surgery departments. At the 18th week of gestation, the fetuses died in utero and they were delivered transvaginally by labor induction. Both infants were female with 430 g in total body weight and both of them were 21 cm in length. Pathological findings were thoracogastro-pagus with a single heart, a single pair of liver and a single small intestine.