title: Partial trisomy 18 due to a maternal translocation t(9;18).
mesh_terms: D002675:Child, Preschool; D002902:Chromosomes, Human, 16-18; D002906:Chromosomes, Human, 6-12 and X; D006801:Humans; D008297:Male; D014178:Translocation, Genetic; D014314:Trisomy