“…Approximately 50 cases of duplications 12p have been described in the medical literature to date consisting of small studies and case reports, that are limited to descriptions of the clinical syndrome at birth or in early infancy. Little is known about the life expectancy of these children, beyond infancy and most of the diagnostic criteria are based on descriptions of infants and adolescents (Segel et al, 2006;Inage et al, 2010;Liu et al, 2012;Poirsier et al, 2014;Mekkawy et al, 2016). The clinical signs most com-monly associated with duplication 12p are increased weight at birth, hypotonia, craniofacial anomalies such as turricephaly, macrocephaly, round face, full cheeks, frontal bossing, wide nasal bridge, short nose, anteverted nares, long philtrum, thin upper lip, short neck, dysmorphic ears, intellectual impairment and moderate to severe psychomotor delay (Hung et al, 2012;Poirsier et al, 2014).…”