Mosaic 47,XY, + 8/48,XXYY in a mentally non‐retarded man with phenotypical and neurological abnormalities

Abstract
This report describes a non-retarded human male, mosaic for a 47,XY,+8 and a 48,XXYY cell line. The 47,XY,+8 cell line is present in approximately 70% of both lymphocytes and skin fibroblasts; 30% of the cells in both tissues have a 48,XXYY karyotype. Clinical abnormalities correspond mostly with the mosaic trisomy 8 syndrome.

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