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Ann Genet. 1997;40(2):104-8.

Mosaic trisomy 14 with hepatic involvement.

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Department of Human Genetics, Mount Sinai School of Medicine, New York 10029, USA.


Mosaic trisomy 14 in liveborns is rare and may be accompanied by uniparental disomy in the euploid cell line. We report the case of a 6 month old male with growth failure, microcephaly, macroglossia, developmental delay, hypotonia, congenital heart disease, neonatal hepatitis, cryptorchidism, talipes equinovarus, limb length asymmetry, bilateral overriding of 1st by 2nd toe, and extended abnormal pigmentation in a linear-whorl distribution. The proband's karyotype in peripheral lymphocytes and skin fibroblasts was mos47,XY,+14/46,XY. Parental blood chromosomes were normal. Molecular analysis excluded uniparental disomy in the euploid cell line of the proband.

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