An infant had typical clinical symptoms of trisomy D1 and a rare DqDq tandem translocation. Our patient can be compared with two other previously reported cases. His mother has increased breakages of chromosomes. His father, maternal grandfather, and grandmother have normal chromosomes.
Chen YC, Espiritu C, Woolley PV. Trisomy D1 Syndrome With DqDq Tandem Translocation. Am J Dis Child. 1971;122(6):535-537. doi:10.1001/archpedi.1971.02110060105019