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Perinatología y reproducción humana

On-line version ISSN 2524-1710Print version ISSN 0187-5337


SEVILLA-MONTOYA, Rosalba et al. The role of genetics in fetal growth restriction. Perinatol. Reprod. Hum. [online]. 2012, vol.26, n.2, pp.35-42. ISSN 2524-1710.

Intrauterine growth restriction (IUGR) is an alteration in fetal development in which the fetal weight is below the 10th percentile for gestational age. The genetic causes of IUGR can be classified as: chromosomal, epigenetic and other imprinting disorders and monogenic syndromes. We report a patient with IUGR referred to our hospital with the prenatal diagnosis of achondroplasia. Vascular malfunction of the placentae, maternal pathology, and skeletal dysplasia were discarded. A karyotype in umbilical cord and in three different placental spots was performed, with a normal result in all of them, ruling out placentae mosaicism. At birth, the weight and height were below the 3th percentile. Physical examination showed: dolicocephaly, frontal prominence, large fontanels, small and triangular face, pointed chin and incurved bilateral fifth fingers. Two months later a lower limb asymmetry was noticed and gastroesophageal reflux was referred. With these clinical abnormalities and the studies performed the diagnosis of Silver-Russell syndrome was established.

Keywords : Intrauterine growth restriction; placental mosaicism; Silver-Russell syndrome.

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