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Keywords:

  • ultrasound;
  • dicephalic;
  • conjoined twins;
  • obstetrics

Abstract

We report the case of dicephalic conjoined twins discovered incidentally on a routine ultrasound at 24 weeks of gestation. There were 2 heads and a neck that fused with 1 thorax, but the spines continued all the way to the coccyx. The spines were connected medially by a fused rib, and laterally, there were ribs that went around the thorax in a more normal fashion. Antenatal ultrasound images are supplemented by postnatal photographs and x-rays. © 2009 Wiley Periodicals, Inc. J Clin Ultrasound, 2010