metaphyseal chondromatosis with D-2-hydroxyglutaric aciduria obsolete primary bone dysplasia with disorganized development of skeletal components obsolete cheirospondyloenchondromatosis https://github.com/monarch-initiative/mondo/issues/9206 true generalized enchondromatosis with platyspondyly icd11.foundation:1707937102 OBSOLETE. Cheirospondyloenchondromatosis is an extremely rare type of enchondromatosis of very early onset (from neonatal period to infancy) characterized by symmetrical multiple enchondromas with metacarpal and phalangeal involvement resulting in short hands and feet, platyspondyly, mild to moderate short stature and intellectual disability. generalised enchondromatosis with platyspondyly Orphanet:99647 MONDO:0020474 SCTID:725104005