Possible intrachromosomal duplication in a case of trisomy 9p

@article{Chiyo1976PossibleID,
  title={Possible intrachromosomal duplication in a case of trisomy 9p},
  author={Hide-aki Chiyo and Jun-ichi Furuyama and Noriyuki Suehara and Y. Obashi and Hirokatsu Kikkawa and Fumihiko Ikoma},
  journal={Human Genetics},
  year={1976},
  volume={34},
  pages={217-221}
}
A 5-year-old boy with multiple minor anomalies and mental retardation was found to have chromosomal condition of 46,XY,inv dup(9p)(pter→p13::p21→p24::p13→qter). The clinical features of the propositus fit well with those of trisomy 9p which have been established to be a clinical entity.