This chapter further discusses bone dysplasias and includes discussion on achondrogenesis (type IB), atelosteogenesis type 2, diastrophic dysplasia, multiple epiphyseal dysplasia (recessive type [rMED]), Desbuquois dysplasia, chondrodysplasia with joint dislocations (IMPAD1/gPAPP type), Catel-Manzke syndrome, chondrodysplasia with congenital joint dislocations (CHST3-type), temtamy preaxial brachydactyly syndrome (TPBS), B4GALT7 deficiency, B3GAT3 deficiency, XYLT1 deficiency, spondyloepimetaphyseal dysplasia with joint laxity Beighton type, spondyloepimetaphyseal dysplasia with joint laxity (leptodactylic type), pseudodiastrophic dysplasia, and Steel syndrome. Each discussion includes major radiographic features, major clinical findings, genetics, major differential diagnoses, and a bibliography.
The homozygous variant c.797G>A/p.(Cys266Tyr) in PISD
is associated with a Spondyloepimetaphyseal dysplasia with large epiphyses and disturbed mitochondrial function
