IGF1R and Beckwith-Wiedemann syndrome: We report an original association of complex genetic defects in a patient carrying both an 11p paternal duplication, resulting in the double expression of <i>insulin-like growth factor 2 (IGF2)</i>, as reported in Beckwith-Wiedemann syndrome, and a 15q terminal deletion, including the <i>type 1 IGF receptor gene</i> (<i>IGF1R</i>), resulting in haploinsufficiency for this gene.