De Novo 1.77-Mb Microdeletion of 10q22.2q22.3 in a Girl With Developmental Delay, Speech Delay, Congenital Cleft Palate, and Bilateral Hearing Impairment.

Abstract excerpt

Interstitial deletions of chromosome band 10q22.1q22.3 are rare. We here report a 2.5-year-old female patient with developmental delay, speech delay, congenital cleft palate, and bilateral hearing impairment. The girl's karyotype was normal. Chromosome microarray analysis (CMA) revealed a 1.77-Mb de novo interstitial deletion in 10q22.2q22.3. The deletion harbors 9 genes, including KAT6B, DUPD1, DUSP13, SAMD8,...

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