TWINS WITH KLEEFSTRA SYNDROME DUE TO CHROMOSOME 9q34.3 MICRODELETION.

Abstract excerpt

Kleefstra or 9q subtelomeric deletion syndrome (9qSTDS) is a rare microdeletion syndrome. The most prominent phenotypic features include hypotonia, developmental retardation, as well as typical dysmorphic face. It has been shown that terminal deletions of the chromosome 9q34.3 region, or EHMT1 gene mutations, lead to Kleefstra syndrome. We present 16-month-old twin sisters, one of whom had originally been...

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