Fetal anomalies on ultrasound in the first trimester

July 1, 2017

A collection of ultrasounds showing fetal anomalies during the first trimester of pregnancy.

During the first trimester, some major anomalies can be diagnosed or excluded by ultrasound. Ultasound findings that aren't diagnostic may be able to suggest structural anomalies. Here are 8 ultrasound images from the first trimester. For more information about using ultrasound to recognize fetal anomalies, please click here.

 

 

 

 

 

Figure 1. First trimester anencephaly

 

 

 

 

Figure 2. First trimester holoprosencephaly

 

 

 

 

Figure 3. First trimester cephalocele

 

 

 

 

Figure 4. First trimester micrognathia

 

 

 

 

Figure 5. First trimester omphalocele

 

 

 

 

Figure 6. First trimester gastroschisis

 

 

 

 

Figure 7. First trimester megacystis

 

 

 

 

Figure 8. First trimester polydactyly