RT Journal Article SR Electronic T1 A case of partial trisomy 15 JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 400 OP 402 DO 10.1136/jmg.11.4.400 VO 11 IS 4 A1 E. Janet Watson A1 R. R. Gordon YR 1974 UL http://jmg.bmj.com/content/11/4/400.abstract AB A girl with mental retardation but few distinctive physical abnormalities is described. Chromosome analysis revealed an extra small acrocentric chromosome with both long and short arms satellited which was identified as a deleted chromosome No. 15. The origin of this chromosome is discussed and the clinical findings compared with those of previously reported cases of partial trisomy 15.