An adult male with XYYY sex chromosomes.
D000293:Adolescent; D000328:Adult; D000782:Aneuploidy; D001827:Body Height; D002648:Child; D002675:Child, Preschool; D003878:Dermatoglyphics; D006801:Humans; D007360:Intelligence; D007621:Karyotyping; D008297:Male; D009061:Mouth Mucosa / Q000166:cytology; D009216:Myopia; D010554:Personality Disorders; D012729:Sex Chromosome Aberrations / Q000235:genetics; D012730:Sex Chromosomes; D013577:Syndrome