[Klinefelter's synrome in a young child. Karyotype with 48 chromosomes XXXY].
D002675:Child, Preschool; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D006801:Humans; D007713:Klinefelter Syndrome
Syndrome de Klinefelter du jeune enfant. Caryotype à 48 chromosomes XXXY.