Other Variations
48,XXXX (Tetrasomy X)
Four X syndrome | NIH | Genetic and Rare Diseases Information Center
48,XYYY
48,XYYY syndrome | NIH | Genetic and Rare Diseases Information Center
Rare 48, XYYY syndrome: case report and review of the literature
49,XXXXX (Pentasomy X)
Pentasomy X | NIH | Genetic and Rare Diseases Information Center
49,XXXXY
48,XXYY, 48,XXXY and 49,XXXXY Syndromes: Not Just Variants of Klinefelter Syndrome by Dr. Nicole Tartaglia et al.
49,XYYYY
49,XYYYY syndrome | NIH | Genetic and Rare Diseases Information Center