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In utero and postnatal imaging findings of parasitic conjoined twins (ischiopagus parasiticus tetrapus)

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Abstract

Conjoined twins are a rare developmental anomaly with a reported prevalence of 1.47 per 100,000 births. We present an uncommon case of a parasitic ischiopagus tetrapus with a parasitic ischiopagus partial twin joined to the complete fetus at the level of the ischium diagnosed in utero by fetal MRI. The correct prenatal diagnosis led to birth by caesarean section. Prenatal MRI findings are presented and corroborated by postnatal imaging delineating the full extent and associated anomalies of this rare malformation. Differential diagnosis of duplicated lower extremities is discussed.

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References

  1. Mutchinick OM, Luna-Muñoz L, Amar E et al (2011) Conjoined twins: a worldwide collaborative epidemiological study of the international clearinghouse for birth defects surveillance and research. Am J Med Genet C Semin Med Genet 157C:274–287

  2. Spencer R (1996) Anatomic description of conjoined twins: a plea for standardized terminology. J Pediatr Surg 31:941–944

    Article  CAS  PubMed  Google Scholar 

  3. Spencer R (2000) Theoretical and analytical embryology of conjoined twins: part I: embryogenesis. Clin Anat 13:36–53

    Article  CAS  PubMed  Google Scholar 

  4. Spencer R (2000) Theoretical and analytical embryology of conjoined twins: part II: adjustments to union. Clin Anat 13:97–120

    Article  CAS  PubMed  Google Scholar 

  5. La Torre R, Fusaro P, Anceschi MM et al (1998) Unusual case of caudal duplication (dipygus). J Clin Ultrasound 26:163–165

    Article  PubMed  Google Scholar 

  6. Osaki Y, Nishimoto S, Oyama T et al (2010) Congenital duplication of lower extremity–a case report and review of the literature. J Plast Reconstr Aesthet Surg 63:390–397

    Article  CAS  PubMed  Google Scholar 

  7. Vallejo OG, Benítez Sánchez MC, Cánovas CS et al (2013) Patient with disorganization syndrome: surgical procedures, pathology, and potential causes. Birth Defects Res A Clin Mol Teratol 97:781–785

    Article  CAS  PubMed  Google Scholar 

  8. McHugh K, Kiely EM, Spitz L (2006) Imaging of conjoined twins. Pediatr Radiol 36:899–910, quiz 1002–1003

    Article  PubMed  Google Scholar 

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Correspondence to Nikolai Stahr.

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Stahr, N., Guggenberger, R., Kellenberger, C.J. et al. In utero and postnatal imaging findings of parasitic conjoined twins (ischiopagus parasiticus tetrapus). Pediatr Radiol 45, 767–770 (2015). https://doi.org/10.1007/s00247-014-3172-0

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  • DOI: https://doi.org/10.1007/s00247-014-3172-0

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