Oculo-auriculo-vertebral spectrum, cat eye, and distal 22q11 microdeletion syndromes: A unique double rearrangement

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An array-CGH on 19-year-old male showed a proximal 1.11 Mb duplication and a distal 1.7 Mb deletion of 22q11.2 regions flanking the Velocardiofacial/DiGeorge syndrome region that remained intact. FISH analyses revealed both abnormalities to be on the same homolog 22. This double rearrangement lead to the co-existence of two syndromes: Cat eye and distal 22q11.2 microdeletion syndromes with a rare associated phenotype of oculo-auriculo-vertebral spectrum (OAVS). A review of the literature indicates that this is the second report of a proximal duplication and the fifth report of a distal deletion and OAVS suggestive of a possible OAVS candidate gene in this region. © 2013 Wiley Periodicals, Inc.

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