Trisomy 20p: case report and genetic review.
Partial trisomy for the distal part of the short arm of chromosome 20 reported in a girl aged 11/2 years with typical craniofacial dysmorphies and psychomotor retardation. The trisomy resulted from a paternal translocation t(14;20) (q32.3;p11.1). The review of 25 cases of partial trisomy 20p showed that most cases (22 : 25) were due to parental translocations. Predominant involvement of small chromosomes in translocations with chromosome 20 was also detected.
D000015:Abnormalities, Multiple / Q000235:genetics*; D002901:Chromosomes, Human, 13-15; D002903:Chromosomes, Human, 19-20; D005260:Female; D006801:Humans; D007223:Infant; D007621:Karyotyping; D014178:Translocation, Genetic; D014314:Trisomy