a group of 27 abnormal pregnancies provides evidence that fetal vomiting and regurgitation , fetal demise , multiple cysts syndrome , idiopathic iugr , arthrogryposis multiplex , hydrocephaly ( stenosis of aqueductus ) , trisomy 21 , trisomy 18 , hydronephrosis , pyloric stenosis , heart malformation , ectopia cordis and multiple gestation produce elevated levels of pseudocholinesterase ( pche ) in amniotic fluid .
C0018798
heart malformation
C0013580
ectopia cordis