title: [Trisomy 21 associated with XYY karyotype].
mesh_terms: D003878:Dermatoglyphics; D004314:Down Syndrome / Q000175:diagnosis / Q000235:genetics*; D006801:Humans; D007223:Infant; D007621:Karyotyping; D008297:Male; D012729:Sex Chromosome Aberrations / Q000209:etiology*; D014997:XYY Karyotype / Q000175:diagnosis / Q000209:etiology*
vernacular_title: Przypadek współistnienia trisomii 21 z zespołem XYY.