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| '''Trisomy 21''', also known as '''Down syndrome''', is a common genetic abnormality.
| | #redirect [[Down syndrome]] |
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| ==Characteristics==
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| Mnemonic ''CHILD HAS PROBLEM'':<ref>URL: [http://www.valuemd.com/genetics.php http://www.valuemd.com/genetics.php]. Accessed on: 29 May 2011.</ref>
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| *[[congenital heart disease|'''C'''ongenital heart disease]] / Cataracts.
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| *Hypotonia / Hypothyroidism.
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| *Incurved 5th finger / Increased gap between 1st and 2nd toe.
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| *[[Leukemia]] risk x2 / Lung problem.
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| *Duodenal atresia / Delayed development.
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| *[[Hirschsprung disease]] / Hearing loss.
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| *[[Alzheimer disease]] / Alantoaxial instability.
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| *Squint / Short neck.
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| *Protruding tongue/ Palmar crease.
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| *Round face / Rolling eye (nystagmus).
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| *Occiput flat / Oblique eye fissure.
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| *Brushfield spot / Brachycephaly.
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| *Low nasal bridge / Language problems.
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| *Epicanthic fold / Ears folded.
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| *Mental retardation / Myoclonus.
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| ==See also==
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| *[[Trisomy 13]] (Patau syndrome).
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| *[[Trisomy 18]] (Edwards syndrome).
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| *[[Chromosomal anomalies]].
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| *[[Stillbirth]].
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| ==References==
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| {{Reflist|1}}
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| [[Category:Syndromes]]
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