Trisomy 18 :
-prominent occiput ;
-small mouth ;
-micrognathia ;
-short sternum ;
-horseshoe kidney ;
-ectopic pancreatic tissue ;
-small pelvis ;
-increased arch patterns on fingertips flexed fingers ;
-overriding index fingers or third fingers ;
-ventricular septal defects ;
-patent ductus arteiosus ;
-intestinal malrotation .