File:220px-Patauhand.PNG

From Embryology

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Trisomy 13 Hand

A 37 2/7 week gestational age male infant with Patau syndrome demonstrating polydactyly.

Trisomy 13 (Patau syndrome) is a rare (1 in 10,000 newborns) developmental genetic abnormality (aneuploidy) with three copies of chromosome 13, instead of the usual two copies, there can also be a chromosomal translocation.


Links: Trisomy 13 | Abnormal Development - Genetic

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Reference

<pubmed>18088410</pubmed>

Chan A, Lakshminrusimha S, Heffner R, Gonzalez-Fernandez F.Histogenesis of retinal dysplasia in trisomy 13. Diagn Pathol. 2007 Dec 18;2(1):48 PMID: 18088410 doi:10.1186/1746-1596-2-48

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