title: 48,XYY,+13 karyotype in a liveborn infant.
abstract: A liveborn male infant, with typical features of trisomy 13, was found to have a combined autosomal and gonosomal trisomy, 48,XYY,+13. To our knowledge, this is the first report of co-existing 13 trisomy and XYY chromosome complement.
mesh_terms: D002901:Chromosomes, Human, 13-15; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D012729:Sex Chromosome Aberrations; D014314:Trisomy; D014997:XYY Karyotype