XY-XYY mosaicism in prepubertal boy with tall stature, prognathism, and malformations of the hands.
D001827:Body Height; D002648:Child; D003582:Cytogenetics; D003878:Dermatoglyphics; D006227:Hand Deformities, Acquired; D006801:Humans; D007621:Karyotyping; D007859:Learning Disabilities; D008297:Male; D009030:Mosaicism; D011378:Prognathism / Q000151:congenital*; D011594:Psychometrics; D012729:Sex Chromosome Aberrations / Q000175:diagnosis*