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  • Title: Duplication within chromosome region 15q11-q13 in a patient with similarities to Prader-Willi syndrome confirmed by region-specific and band-specific fish.
    Author: Engelen JJ, Loots WJ, Albrechts JC, Schrander-Stumpel CT, Dirckx R, Smeets HJ, Hamers AJ, Geraedts JP.
    Journal: Genet Couns; 1999; 10(2):123-32. PubMed ID: 10422004.
    Abstract:
    We report on a patient presenting with mental retardation and obesity and a proximal duplication of chromosome 15. The patient shared some clinical signs with Prader-Willi syndrome. With a region-specific paint, generated by microdissection, a duplication in region 15q11.2-q13 was shown to be present. Subsequently, FISH with probes localized to chromosome region 15q11.2-q12 and microsatellite analysis was used to characterize this chromosome aberration further and an insertion duplication within the region frequently deleted in Prader-Willi and Angelman syndrome was demonstrated.
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