Prenatal sonographic delineation of the complex cardiac anatomy of thoraco‐omphalopagus twins

We describe a case of thoraco‐omphalopagus twins diagnosed at 18 weeks' gestation. Each twin had a separate set of anatomical structures except for a shared heart, upper liver and anterior chest wall. The heart was located at the center of the juncture, and consisted of three atria and two vent...

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Bibliographic Details
Published in:Ultrasound in obstetrics & gynecology 2005-02, Vol.25 (2), p.189-192
Main Authors: Tongsong, T., Khunamornpong, S., Piyamongkol, W., Chanprapaph, P.
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
cardiovascular complex
conjoined twins
Female
fetal echocardiography
Gynecology. Andrology. Obstetrics
Heart Defects, Congenital - diagnostic imaging
Humans
Liver - abnormalities
Liver - diagnostic imaging
Medical sciences
Pregnancy
prenatal diagnosis
Thoracic Wall - abnormalities
Thoracic Wall - diagnostic imaging
thoraco‐omphalopagus
Twins, Conjoined
Ultrasonography, Prenatal - methods
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Summary:We describe a case of thoraco‐omphalopagus twins diagnosed at 18 weeks' gestation. Each twin had a separate set of anatomical structures except for a shared heart, upper liver and anterior chest wall. The heart was located at the center of the juncture, and consisted of three atria and two ventricles, each twin having a single ventricle and right atrium but a fused left atrium. A set of great arteries originated from each single ventricle and there was juxtaposition of the aortic and pulmonary valves. One twin had transposition of the great arteries, whereas in the other these were normal in configuration. There was only one umbilical cord which contained four vessels (two arteries and two veins). This case report demonstrates the possibility of using fetal echocardiography to delineate the cardiovascular complex of the conjoined heart. Copyright © 2005 ISUOG. Published by John Wiley & Sons, Ltd.
ISSN:0960-7692
1469-0705
DOI:10.1002/uog.1801