title: XY-XYY mosaicism associated with major genital defects.
mesh_terms: D001706:Biopsy; D002648:Child; D003456:Cryptorchidism; D005187:Fallopian Tubes / Q000002:abnormalities / Q000473:pathology; D005260:Female; D005347:Fibroblasts; D007839:Functional Laterality; D005837:Genitalia, Male / Q000002:abnormalities*; D006801:Humans; D007021:Hypospadias; D007621:Karyotyping; D007962:Leukocytes; D008297:Male; D009030:Mosaicism; D012729:Sex Chromosome Aberrations / Q000235:genetics*; D013737:Testis / Q000002:abnormalities / Q000473:pathology; D014649:Vas Deferens / Q000002:abnormalities