Prenatal and postnatal radiologic evaluation of conjoined twins

Semin Perinatol. 2018 Oct;42(6):369-380. doi: 10.1053/j.semperi.2018.07.015. Epub 2018 Jul 26.


Imaging of conjoined twins requires the use of multiple modalities, in both the prenatal and postnatal setting. Prenatal imaging, including both ultrasound and magnetic resonance imaging, benefits from an organized, worksheet-based approach, careful labelling of all images, and adoption of supplemental techniques. Postnatal imaging should be informed by the prenatal imaging findings and should be thoughtfully planned prior to performance. Complete evaluation prior to planned surgical separation will require the use of complementary modalities and multidisciplinary review and discussion.

Keywords: Conjoined twins; Fetal MRI; Postnatal imaging; Ultrasound.

Publication types

  • Review

MeSH terms

  • Abnormalities, Multiple / diagnostic imaging
  • Female
  • Humans
  • Imaging, Three-Dimensional / methods*
  • Infant, Newborn
  • Interdisciplinary Communication
  • Magnetic Resonance Imaging*
  • Patient Care Planning*
  • Postnatal Care / methods*
  • Pregnancy
  • Twins, Conjoined* / embryology
  • Twins, Conjoined* / pathology
  • Ultrasonography, Prenatal*