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Clinics and Practice
Volume 8
Issue 2
10.4081/cp.2018.1039
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Clinics and Practice is published by MDPI from Volume 11 Issue 1 (2021). Previous articles were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence, and they are hosted by MDPI on mdpi.com as a courtesy and upon agreement with PAGEPress.
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Case Report

Early Prenatal Diagnosis of Parapagus Conjoined Twins

by
Ângela Melo
*,
Rita Dinis
,
António Portugal
,
Ana Isabel Sousa
and
Isabel Cerveira
Obstetrics and Gynecology Department, Centro Hospitalar Tondela-Viseu, EPE, Viseu, Portugal
*
Author to whom correspondence should be addressed.
Clin. Pract. 2018, 8(2), 1039; https://doi.org/10.4081/cp.2018.1039
Submission received: 12 November 2017 / Revised: 3 January 2018 / Accepted: 26 February 2018 / Published: 28 March 2018

Abstract

Conjoined twinning occurs in 1/100 of monozygotic twins, 1/50,000 gestations and 1/250,000 live births. It is the consequence of a division event at the primitive streak stage of the human embryonic development, about 13-14 days after fertilisation, in monochorionic monoamniotic gestations. A healthy pregnant woman, Gravida 2 Para 1, was admitted into our Fetal Medicine Unit to perform the first trimester ultrasound. A diagnosis of conjoined parapagus twinning based on ultrasound features was made at 11 weeks of gestation, and the couple decided to terminate the pregnancy. The ultrasound showed two independent skulls and hearts, a shared spine below the thoracic level, and a shared stomach. The pathological findings were slightly different, showing two independent stomachs draining into a common duodenum. The karyotype was 46 XY. Early prenatal ultrasound may provide a window to counsel the family and to offer an early termination of pregnancy.
Keywords: monozygotic twinning; ultrasound; termination of pregnancy monozygotic twinning; ultrasound; termination of pregnancy

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MDPI and ACS Style

Melo, Â.; Dinis, R.; Portugal, A.; Sousa, A.I.; Cerveira, I. Early Prenatal Diagnosis of Parapagus Conjoined Twins. Clin. Pract. 2018, 8, 1039. https://doi.org/10.4081/cp.2018.1039

AMA Style

Melo Â, Dinis R, Portugal A, Sousa AI, Cerveira I. Early Prenatal Diagnosis of Parapagus Conjoined Twins. Clinics and Practice. 2018; 8(2):1039. https://doi.org/10.4081/cp.2018.1039

Chicago/Turabian Style

Melo, Ângela, Rita Dinis, António Portugal, Ana Isabel Sousa, and Isabel Cerveira. 2018. "Early Prenatal Diagnosis of Parapagus Conjoined Twins" Clinics and Practice 8, no. 2: 1039. https://doi.org/10.4081/cp.2018.1039

APA Style

Melo, Â., Dinis, R., Portugal, A., Sousa, A. I., & Cerveira, I. (2018). Early Prenatal Diagnosis of Parapagus Conjoined Twins. Clinics and Practice, 8(2), 1039. https://doi.org/10.4081/cp.2018.1039

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