Article Title: Mosaic double aneuploidy: Down syndrome and XYY
Authors: Parihar, Koshy, and Srivastava
Date of Publication: July 2013
“Down syndrome (trisomy 21) is the most common aneuploidy seen in live born infants. Rarely, infants with typical phenotypic features of Down syndrome may have an additional aneuploidy. We report a patient with Down syndrome who had mosaicism for XYY. There is only one other report of such a patient.”