Article
Selective cognitive impairment and tall stature due to chromosome 19 supernumerary ring.
Clinical dysmorphology - 1 Jan 2012
Melis Daniela, Genesio Rita, Del Giudice Ennio, Taurisano Roberta, Mormile Angela, D'Elia Federica, Conti Anna, Imperati Floriana, Andria Generoso, Nitsch Lucio
Abstract excerpt
Small supernumerary marker chromosomes (sSMC) occur with a frequency of approximately 0.4 per 1000 newborns and are more frequent in the population with mental retardation and/or with dysmorphic signs. Small supernumerary chromosome rings (sSCR) usually occur as apart of a mosaic karyotype (Liehr et al., 2004). Chromosome 19 supernumerary rings are very rare. Almost all cases of sSMC19 have been reported on...
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