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  • Title: A child with cat-eye syndrome and oculo-auriculo-vertebral spectrum phenotype: A discussion around molecular cytogenetic findings.
    Author: Glaeser AB, Diniz BL, Santos AS, Guaraná BB, Muniz VF, Carlotto BS, Everling EM, Noguchi PY, Garcia AR, Miola J, Riegel M, Mergener R, Gazzola Zen PR, Machado Rosa RF.
    Journal: Eur J Med Genet; 2021 Nov; 64(11):104319. PubMed ID: 34474176.
    Abstract:
    Cat eye syndrome (CES) is a rare chromosomal disorder that may be evident at birth. A small supernumerary chromosome is present, frequently has 2 centromeres, is bisatellited, and represents an inv dup(22)(q11) in those affected. It's known that the 22q11 region is associated with disorders involving higher and lower gene dosages. Conditions such as CES, 22q11 microduplication syndrome (Dup22q11) and oculoauriculovertebral spectrum phenotype (OAVS) may share genes belonging to this same region, which is known to have a predisposition to chromosomal rearrangements. The conditions, besides being related to chromosome 22, also share similar phenotypes. Here we have added a molecular evaluation update and results found of the first patient described with CES and OAVS phenotype, trying to explain the potential mechanism involved in the occurrence of this association.
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