A rare semidominant genetic skeletal disorder caused by a variation in ACAN gene, characterized by short stature with variable phenotypic features which may include osteochondritis dissecans, advanced bone age, early-onset arthritis, and/or features consistent with spondyloepiphyseal dysplasia, Kimberley type caused by a single allele whereas biallelic variation can cause spondyloepimetaphyseal dysplasia, aggrecan type.
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