Patau Syndrome (Trisomy 13)

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A newborn male with full trisomy 13 (Patau syndrome).  this baby has a cleft palate, atrial septal defect, inguinal hernia, and postaxial polydactyly of the left hand.

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An individual with full trisomy 13 at age 7 years (survival beyond the first year is uncommon).  He is deaf and legally blind.

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The karyotype here demonstrates trisomy 13 (47, XX, +13) also known as Patau's syndrome. It is rare for fetuses with this condition to go to term, so it occurs in only 1 in 6000 live births. It is rare for babies to survive for very long if liveborn because of the multitude of anomalies that are usually present.

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This is a prominent bilateral cleft lip associated with trisomy 13.

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Polydactyly, particularly of all extremities, strongly suggests trisomy 13. Extra toes are seen here on each foot.

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An extra finger (polydactyly) is present on this hand of an infant with trisomy 13.

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This baby with trisomy 13 has cyclopia (single eye) with a proboscis (the projecting tissue just above the eye).

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