Definition of "gastroschisis" [gastroschisis]

• A defect of the abdominal wall through which the viscera protrude (noun)

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• "The diagnosis of gastroschisis is usually made by ultrasound, in many cases following an elevated maternal serum alpha-fetoprotein test in the second trimester."
• "Unlike other abdominal wall defects such as omphalocele, gastroschisis is typically not associated with chromosomal anomalies or other structural malformations with the exception of intestinal atresia (blockage), which occurs in only about 10 percent of cases."
• "Amniotic fluid acetylcholinesterase is found in gastroschisis but not omphalocele."