title: Rare translocation 47,XY,t(12;21) in Down's syndrome.
mesh_terms: D000293:Adolescent; D002869:Chromosome Aberrations; D002904:Chromosomes, Human, 21-22 and Y; D002906:Chromosomes, Human, 6-12 and X; D004314:Down Syndrome / Q000097:blood / Q000235:genetics*; D005260:Female; D005453:Fluorescence; D006801:Humans; D007621:Karyotyping; D008297:Male; D008875:Middle Aged; D014178:Translocation, Genetic