A severely short-statured girl with 47,XX, + 14/46,XX,upd(14)mat, mosaicism

The predominant symptoms of trisomy 14 mosaicism are prenatal and postnatal growth failure, ear abnormalities, congenital heart disease, developmental delay, and genitourinary abnormalities. Maternal uniparental disomy of chromosome 14 (upd(14)mat) presents discernible clinical features such as pren...

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Bibliographic Details
Published in:Journal of human genetics 2018-03, Vol.63 (3), p.377-381
Main Authors: Ushijima, Kikumi, Yatsuga, Syuichi, Matsumoto, Takako, Nakamura, Akie, Fukami, Maki, Kagami, Masayo
Format: Article
Language:English
Subjects:
Abnormal Karyotype
Biomarkers
Child, Preschool
Chromosome 14
Chromosome Banding
Chromosomes, Human, Pair 14 - genetics
Coronary artery disease
Deafness
Dwarfism - diagnosis
Dwarfism - genetics
Ear
Female
Genetic Association Studies
Genetic markers
Genomic Imprinting
Growth Charts
Heart diseases
Humans
In Situ Hybridization, Fluorescence
Japan
Leukocytes
Microsatellite Repeats
Microsatellites
Mosaicism
Phenotype
Physical growth
Puberty
Trisomy
Trisomy - genetics
Uniparental Disomy
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Summary:The predominant symptoms of trisomy 14 mosaicism are prenatal and postnatal growth failure, ear abnormalities, congenital heart disease, developmental delay, and genitourinary abnormalities. Maternal uniparental disomy of chromosome 14 (upd(14)mat) presents discernible clinical features such as prenatal and postnatal growth failure, hypotonia, precocious puberty, and obesity. Given the small number of previously reported patients with a combination of trisomy 14 mosaicism and upd(14)mat, the detailed clinical features of these patients remain to be elucidated. Here we report a severely short-statured girl with feeding difficulties and failure to thrive, ear abnormalities, deafness, small hands, and developmental delay. Karyotyping, FISH analysis, methylation analysis, and microsatellite marker analysis using her leukocytes and buccal cells showed that she had a combination of trisomy 14 mosaicism and upd(14)mat. Furthermore, a comparison of the clinical features of this patient with those of previously reported patients with genetic anomalies including the combination of trisomy 14 mosaicism and upd(14)mat or upd(14)mat suggested that the severe short stature observed in patients with a combination of trisomy 14 mosaicism and upd(14)mat stemmed from the synergic effect of these two events. In severely short-statured patients with trisomy 14 mosaicism, we should be aware of the possible coexistence of upd(14)mat.
ISSN:1434-5161
1435-232X
DOI:10.1038/s10038-017-0381-z