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DOI: 10.1007/s40556-019-00192-z
Prenatal Diagnosis of Sirenomelia: Cluster of Three Cases

Abstract
Sirenomelia is an extremely rare anomaly characterised by varying degrees of fusion of lower limbs. Anomalies involving uro-genital tract, colo-rectal atresia and vertebral defects are often associated. Prognosis largely depends upon concomitant visceral malformations as well as the degree of fusion defect. Classical sirenomelia is incompatible with life although there are few report of survivors. Prenatal diagnosis, though possible, is difficult to make due to associated anhydramnios and anomalies. Ultrasound is the main diagnostic modality with fetal MRI playing a complementary role. We describe three cases of fetal sirenomelia that presented within a span of 1 year and propose possible vascular insult as the cause.
Keywords
Fetal sirenomelia - Prenatal diagnosis - Mermaid syndrome - Sympus dipus - Sympus apus - VATER/VACTERL association - Caudal regression syndromePublikationsverlauf
Eingereicht: 16. Dezember 2018
Angenommen: 08. Februar 2019
Artikel online veröffentlicht:
08. Mai 2023
© 2019. Society of Fetal Medicine. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
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