A Novel Partial Duplication of and Review of Involvement in Mowat-Wilson Syndrome.

Mowat-Wilson syndrome is a rare genetic condition characterized by intellectual disability, structural anomalies, and dysmorphic features. It is caused by haploinsufficiency of the gene in chromosome 2q22.3.

Chromosomal Microarray Analysis of Consecutive Individuals with Autism Spectrum Disorders Using an Ultra-High Resolution Chromosomal Microarray Optimized for Neurodevelopmental Disorders.

Copy number variants (CNVs) detected by chromosomal microarray analysis (CMA) significantly contribute to understanding the etiology of autism spectrum disorder (ASD) and other related conditions. In recognition of the value of CMA testing and its impact on medical management, CMA is in medical guidelines as a first-tier test in the evaluation of children with these disorders. As CMA becomes adopted into routine care for these patients, it becomes increasingly important to report these clinical findings.

Mosaic deletion of 20pter due to rescue by somatic recombination.

We report on a unique case of a mosaic 20pter-p13 deletion due to a somatic repair event identified by allele differentiating single nucleotide polymorphism (SNP) probes on chromosomal microarray. Small terminal deletions of 20p have been reported in a few individuals and appear to result in a variable phenotype. This patient was a 24-month-old female who presented with failure to thrive and speech delay.