?:definition
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Mosaic trisomy 8 is a chromosomal disorder defined by the presence of three copies of chromosome 8 in some cells of the organism. The disorder has manifestations of facial dysmorphism, mild intellectual deficit and joint, urinary, cardiac and skeletal anomalies. Most patients present a moderate intellectual deficit with some patients having a normal intelligence. Mosaic trisomy 8 is the result of a post-zygotic event.
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