48,XXXX (Tetrasomy X)

rarediseases.info.nih.gov/diseases/7754/tetrasomy-x

 

48,XYYY

rarediseases.info.nih.gov/diseases/11985/48xyyy

www.ncbi.nlm.nih.gov/pmc/articles/PMC5771943/

 

49,XXXXX (Pentasomy X)

rarediseases.org/rare-diseases/penta-x-syndrome/

rarediseases.info.nih.gov/diseases/5678/49xxxxx-syndrome

 

49,XXXXY

48,XXYY, 48,XXXY and 49,XXXXY Syndromes: Not Just Variants of Klinefelter Syndrome by Dr. Nicole Tartaglia et al.

groups.yahoo.com/neo/groups/49variant/info

 

49,XYYYY

www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=EN&Expert=99330


More Tetrasomy and Pentasomy information and support coming soon.