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Jarcho-Levin syndrome MeSH Supplementary Concept Data 2025
A heterogeneous group of autosomal recessive axial skeletal disorders characterized by multiple segmentation defects of the VERTEBRAE (SDV), malalignment of the ribs with variable points of intercostal fusion, and often a reduction in rib number. Rib abnormalities may cause increased pressure in the THORAX, leading to diaphragmatic hernia. Mutations in the DLL3 gene have been identified. OMIM: 277300