the 50 diagnostic cases included 4 with male karyotypes which were terminated due to a family history of an x-linked disorder , 1 trisomy 21 , 1 trisomy 18 , the finding of 1 aberrant cell out of 50 in an otherwise normal analysis , a 45 , xy , t ( 13 ; 21 ) karyotype , 2 fragile x negative karyotypes and in one case the presence of mosaicism was detected in chorionic villi and subsequently not confirmed at amniocentesis .
C0011900
diagnostic
C0037088
finding