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Intellectual disabilities are genetically heterogeneous and can be associated with congenital anomalies. Using whole-exome sequencing (WES), we identified five different de novo missense variants in the protein phosphatase-1 catalytic subunit beta (PPP1CB) gene in eight unrelated individuals who share an overlapping phenotype of dysmorphic features,(More)
We describe a 0.73 Mb duplication of chromosome 22q11.21 between LCR-B and LCR-D and a missense mutation in a conserved C2H2 zinc finger domain of SALL4 in a cognitively normal patient with multiple skeletal anomalies including radioulnar synostosis, thumb aplasia, butterfly vertebrae, rib abnormalities, and hypoplasia of the humeral and femoral epiphyses.(More)
Incontinentia pigmenti (IP) is an X-linked dominant disorder that in most cases is considered lethal in males. IP affects the skin, hair, teeth, nails, eyes, and central nervous system. We report a case of persistent hypercalcemia (10.6-11.3 mg/dL) in a 19-month-old Caucasian boy with clinical IP. The proposed mechanism for his hypercalcemia is discussed.
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