Trisomy for the long arm of the chromosome 18 due to de novo 18/21 translocation.
D002902:Chromosomes, Human, 16-18; D002904:Chromosomes, Human, 21-22 and Y; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D014178:Translocation, Genetic; D014314:Trisomy