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首页> 外文期刊>Clinical dysmorphology >Recurrent 1q21.1 deletion syndrome: report on variable expression, nonpenetrance and review of literature
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Recurrent 1q21.1 deletion syndrome: report on variable expression, nonpenetrance and review of literature

机译：复发1Q21.1删除综合征：关于可变表达，非培训和文学评论的报告

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The clinical phenotype of 1q21.1 microdeletion syndrome is highly heterogeneous. It is characterized by dysmorphic facial features, microcephaly, and developmental delay. Several congenital defects, including cardiac, ocular, skeletal anomalies, and psychiatric or behavioural abnormalities, have also been described. Here, we report on two siblings with substantial intrafamilial phenotypic variability carrying a heterozygous deletion of the 1q21.1 region spanning a known critical genomic area (similar to 1.35 Mb). The microdeletion was inherited from the unaffected father. Patients described here show a spectrum of clinical features, a portion of which overlap with those previously reported in patients with 1q21.1 microdeletions. In addition, we review the clinical reports of 66 individuals with this condition. These findings extend and substantiate the current clinical understanding of recurrent copy number variations in the 1q21.1 region.
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