Deletion of 11q24.2-qter in a male child with cleft lip and palate: an atypical feature of Jacobsen syndrome
JUNDAO WANG TIANLI ZHAO ZHIPING TAN XUEYANG GONG YILIYA AHEMAITI LUYAO WEI SHIJUN HU
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Jacobsen syndrome (JS) is caused by the terminal deletion at the long arm of chromosome 11. It is characterized by growth retardation, intellectual disability, facial dysmorphism, and other congenital abnormalities. The subband 11q24.1 has been confirmed to be the critical region for the typical features of JS. The patient in the current study is a 2-year-old male child with prominent craniofacialabnormalities and congenital heart disease. High-resolution single-nucleotide polymorphism arrays revealed breakage in chromosome 11q beginning at 11q24.2, with complete deletion of the distal portion. We collected all available reports describing patients with breakages at 11q24.1 or 11q24.2, and compared it with the typical features of JS. We found that the phenotype of cleft lip and palate (CLP) was present in both groups of patients with no overlap region in the deletion region (between 11q21-q23 and 11q24.2-qter), which indicated that other genes may be related to CLP in JS.
JUNDAO WANG1 TIANLI ZHAO1 ZHIPING TAN2 XUEYANG GONG1 YILIYA AHEMAITI1 LUYAO WEI1 SHIJUN HU1
Volume 102, 2023
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