title: Duplication 12q mosaicism in two unrelated patients with a similar syndrome.
abstract: Two unrelated children with a similar syndrome were found to have mosaicism for a cell line containing one chromosome 12 with an additional faintly G-banding staining region that apparently represents a duplication of the distal portion of the long arm. The homology and the other chromosomes are normal, as are the parental chromosomes. The remarkable phenotypic similarity of the 2 patients and their resemblance to 2 previously reported patients with duplication of the same chromosome region suggests that duplication 12q24 results in a clinically identifiable malformation syndrome.
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics*; D002871:Chromosome Banding; D002906:Chromosomes, Human, 6-12 and X; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000235:genetics*; D007621:Karyotyping; D008297:Male; D009030:Mosaicism; D010641:Phenotype; D013577:Syndrome; D014314:Trisomy