[Pre- and postnatal diagnosis of omphalo-xiphopagus conjoined twins].

We report a case with successful surgical separation of female omphalo-xiphopagus conjoined twins. Ultrasonographic examination at 20 weeks of gestation showed twins joined at the abdomen from the xiphoid process to the umbilicus. Conjoined structures included liver. Karyotype was normal. The parents refused interruption of the pregnancy. Plain films, US and MRI confirmed findings at prenatal ultrasound examination. There was no cross circulation into the livers and the gastrointestinal tract was not conjoined. In our observation, postnatal MRI did not offer additional information.