,The following is the fetal biometry for twin B. The biparietal diameter is 4.7 cm consistent with 20 weeks and 2 days, head circumference 17.5 cm consistent with 20 weeks and 0 day, the abdominal circumference is 15.5 cm consistent with 20 weeks and 5 days, the femur length is 3.3 cm consistent with 20 weeks and 3 days, and the humeral length is 3.1 cm consistent with 20 weeks and 2 days, the average gestational age by ultrasound is 22 weeks and 2 days, and the estimated fetal weight is 384 g.  The following structures were seen as normal on the fetal anatomical survey. 
,The following is the fetal biometry for twin B. The biparietal diameter is 4.7 cm consistent with 20 weeks and 2 days , head circumference 17.5 cm consistent with 20 weeks and 0 day , the abdominal circumference is 15.5 cm consistent with 20 weeks and 5 days , the femur length is 3.3 cm consistent with 20 weeks and 3 days , and the humeral length is 3.1 cm consistent with 20 weeks and 2 days , the average gestational age by ultrasound is 22 weeks and 2 days , and the estimated fetal weight is 384 g. The following structures were seen as normal on the fetal anatomical survey .