title: 47,XXX chromosome constitution in a male.
abstract: An 18-year-old boy with a male phenotype was examined because of testicular hypoplasia. Chromosome analysis using Q- and R-banding techniques and BUdR treatment showed a 47,XXX karotype, in both lymphocytes and fibroblasts. Cytogenetic problems raised by this case are discussed in relation to data from previous published reports.
mesh_terms: D000293:Adolescent; D002871:Chromosome Banding; D005260:Female; D005347:Fibroblasts / Q000648:ultrastructure; D006801:Humans; D007621:Karyotyping; D007713:Klinefelter Syndrome / Q000235:genetics; D008214:Lymphocytes / Q000648:ultrastructure; D008297:Male; D009030:Mosaicism; D010641:Phenotype; D012729:Sex Chromosome Aberrations / Q000235:genetics*; D012730:Sex Chromosomes; D014960:X Chromosome