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Conjoined thoracopagus twins

W D Edwards, D R Hagel, J Thompson

    Circulation
    |September 1, 1977
    PubMed
    Summary
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    This case study presents thoracopagus conjoined twins with unique visceral anomalies and complex cardiac defects. Surgical salvage of one twin might be hypothetically possible, while the other is sacrificed.

    Area of Science:

    • Medical Case Study
    • Developmental Biology
    • Congenital Anomalies

    Background:

    • Presents a rare case of thoracopagus conjoined twins.
    • Highlights complex congenital anomalies in monozygotic twins.

    Purpose of the Study:

    • To document a unique case of conjoined twins with extensive visceral and cardiac malformations.
    • To discuss potential surgical considerations in such complex cases.

    Main Methods:

    • Case report of a stillborn female thoracopagus conjoined twin pair.
    • Detailed anatomical and pathological examination of shared and individual organs and circulatory systems.

    Main Results:

    • Twins shared pericardial and abdominal cavities, liver, and small bowel.

    Related Experiment Videos

  • Exhibited unique, non-mirror-image visceral anomalies, including asplenia in one twin.
  • Presented severe, complex cardiac malformations with fused atria and ventricles, and intercirculatory communications.
  • One twin had single atrium, solitary right ventricle, pulmonary atresia, and right aortic arch.
  • The other twin had dual atrial septal defects, partial anomalous pulmonary venous connection, persistent left superior vena cava, solitary left ventricle, and left aortic arch.

    • Conclusions:

    • Thoracopagus conjoined twins can present with highly individualized and complex visceral and cardiac anomalies.
    • Surgical intervention for conjoined twins requires careful consideration of shared anatomy and individual viability.
    • This case underscores the variability and complexity of congenital malformations in monozygotic twins.