Omphalocele

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[edit] Discussion of Omphalocele

  • Omphalocele and gastroschisis are the two most common major congenital abdominal wall defects.
  • With omphalocele, the intraabdominal viscera herniate into the base of the umbilical cord and the herniated viscera are covered by the peritoneum and amnion.
  • Incidence of omphalocele reported in the literature varies considerably, ranging from 0.8 to 3.9 cases per 10,000 births.
  • Omphalocele is known to be a part of various anomaly syndromes, such as Beckwith-Wiedemann syndrome, pentalogy of Cantrell, and omphalocele exstrophy imperforate anus spinal defects syndrome.
  • Associated structural anomalies have been noted in 27% to 91% of fetuses with omphalocele
  • Abnormal chromosomes, mainly those of trisomy 13 and trisomy 18, have been observed in 20%–50% of cases.

[edit] Imaging Findings for Omphalocele

  • The sonographic diagnosis of an abdominal-wall defect can be made when a mass containing viscera is seen to project from the anterior abdominal wall of the fetus.
  • Sonographic differentiation of omphalocele from gastroschisis has been based on the site of cord insertion, the presence of a covering membrane, and the type of viscera protruding into the defect.

[edit] Images

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[edit] See Also

[edit] External Links

[edit] References for Omphalocele

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