Trisomy 18 Wes Cormick Article Published: Oct 28, 2002 Camberra Imaging Group, Australia The following images were obtained during a second trimester ultrasound examination. Small unilateral choroid plexus cyst. Strawberry-shaped skull Micrognathia Cardiac anomaly (VSD) An amniocentesis was performed and fetal karyotype confirmed the suspicion of trisomy 18. Â Discussion Board Start a discussion about this article Add to Favorites Favorite