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Trisomy 13 Syndrome

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Erin Hoadley

on 4 May 2010

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Transcript of Trisomy 13 Syndrome

Trisomy 13 syndrome Cleft lip or palate
Clenched hands (with outer fingers on top of the inner fingers)
Close-set eyes -- eyes may actually fuse together into one
Decreased muscle tone
Extra fingers or toes
Hernias: umbilical hernia, inguinal hernia
Hole, split, or cleft in the iris
Low-set ears
Mental retardation, severe
Scalp defects (missing skin)
Single palmar crease
Skeletal (limb) abnormalities
Small eyes
Small head
Small lower jaw
Undescended testicle

Symptoms There’s a third 13th chromosome.
Extra DNA
There is no exact DNA mutation known
They are most commonly not inherited. However, if the mutated gene is in the sex chromosome, then it is possible to inherit the syndrome chromosome information Trisomy 13 affects approximately 1 in 10,000 newborns.
The risk of having a child with trisomy 13 increases as a woman gets older.
Risks Ultrasound can identify fetal abnormalities in as many as 95% of fetuses with trisomy 13
Genetic testing Taylor Keith
Erin Hoadley
Jacqueline Swinerton
Full transcript