Pre- and postnatal diagnosis of omphalo-xiphopagus conjoined twins

We report a case with successful surgical separation of female omphalo-xiph opagus conjoined twins. Ultrasonographic examination at 20 weeks of gestati on showed twins joined at the abdomen from the xiphoid process to the umbil icus. Conjoined structures included liver. Karyotype was normal. The parent s 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 o bservation, postnatal MRI did not offer additional information.