Conjoined twins with single heart and liver - a case report.

Twin pregnancy is common but conjoined twins are an extremely rare congenital malformation without any known genetic predisposition. The incidence of conjoined twins is estimated to be around 1 in 250,000 live births with a female predilection. We presented an extremely rare case of abdomino-thoracopagus with single heart and liver. In this paper, the imaging of conjoined twins both antenatally and postnatally is reviewed, in particular taking into consideration recent advances with gray scale and color Doppler ultrasound. This case is of particular interest because of the rarity of abdomino-thoracopagus twins with single heart and liver, in literature.