SLC26A2 and Hip dysplasia: The first one was a missense pathogenic variant in SLC26A2 (NM_000112.4:c.835C>T; p.Arg279Trp), previously reported in Recessive Multiple Epiphyseal Dysplasia type 4 (OMIM #226900) [13] and accounting for his cleft palate, short limb appearance, and hip dysplasia that probably led to femoral head necrosis.