Fetal Diagnosis and Therapy
Images in Fetal Medicine
Diamniotic Omphalopagus Conjoined Twins in a Diamniotic PregnancyTihtonen K.a · Lagerstedt A.b · Kähkönen M.c · Kirkinen P.a, dDepartments of aObstetrics and Gynecology, bPathology and cClinical Genetics, Tampere University Hospital, and dUniversity of Tampere, Tampere, Finland
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Article / Publication Details
Received: November 26, 2008
Accepted: December 22, 2008
Published online: September 22, 2009
Issue release date: September 2009
Number of Print Pages: 3
Number of Figures: 6
Number of Tables: 0
ISSN: 1015-3837 (Print)
eISSN: 1421-9964 (Online)
For additional information: https://www.karger.com/FDT
Abstract
Objective: To present antepartal diagnostic findings including 2D/3D ultrasonography in a rare case of conjoined twins with diamniotic placentation. Methods: In ultrasonographic examination, a communicating structure containing solid and cystic components together with cord vessels was found between the fetuses. The long axes of the fetuses were not parallel and they moved independently. Bladder configurations were absent. A fetal membrane from the chorioidal plate was imaged. Results: Postmortem pathological examination revealed that the twins were conjoined by way of fused cloacal exstrophy and omphalocele, and the separate amniotic cavities communicated via a fused allantoic cavity. The placenta was monochorionic and diamniotic. DNA analysis of the twins and the placenta confirmed the monozygotic origin. Conclusion: Visualization of the amniotic membrane does not rule out conjoined twins in rare cases of monochorionic twin pregnancies.
© 2009 S. Karger AG, Basel
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References
- Basgul A, Kavak ZN, Sezen D, Basgul A, Gokaslan H: Thoraco-omphalogus conjoined twins detected as early as 9 weeks of gestation: transvaginal two-dimensional ultrasound, color Doppler and fetoplacental Doppler velocity waveform findings. Fetal Diagn Ther 2006;21:477–480.
- Weston P, Ives E, Honore R, Lees G, Sinclair D, Schiff D: Monochorionic diamniotic minimally conjoined twins: a case report. Am J Med Genet 1990;37:558–561.
- Spencer R: Minimally united ischiopagus twins: infraumbilical union with cloacal anomalies. J Pediatr Surg 1996;31:1538–1545.
Article / Publication Details
Received: November 26, 2008
Accepted: December 22, 2008
Published online: September 22, 2009
Issue release date: September 2009
Number of Print Pages: 3
Number of Figures: 6
Number of Tables: 0
ISSN: 1015-3837 (Print)
eISSN: 1421-9964 (Online)
For additional information: https://www.karger.com/FDT
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