Spondyloenchondrodysplasia with Immune Dysregulation, also known as spondyloenchondrodysplasia, is related to metaphyseal enchondromatosis with d-2-hydroxyglutaric aciduria and bone dysplasia azouz type, and has symptoms including muscle spasticity An important gene associated with Spondyloenchondrodysplasia with Immune Dysregulation is ACP5 (Acid Phosphatase 5, Tartrate Resistant). Affiliated tissues include bone and thyroid, and related phenotypes are platyspondyly and metaphyseal dysplasia