Diagnosis and Testing
What are the common findings on ultrasound for Trisomy 13?
It is not uncommon for babies with trisomy 13 to have abnormal ultrasound findings. The discovery could vary from inadequate growth (intrauterine growth restriction) to a heart defect. Other findings could be hydrocephalus (build up of fluid in the brain) or oligohydramnios (too little amniotic fluid surrounding the baby). Some babies with trisomy 13 have an abdominal defect which leads to some of the baby's intestines being outside of the body. This is called an omphalocele, and is easily seen on a prenatal ultrasound.
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