A rare disorder characterised by growth retardation with prenatal onset, cataracts, microcephaly, intellectual deficit, immune deficiency, delayed ossification and enamel hypoplasia. It has been described in two siblings. Transmission is autosomal recessive.

An anomaly of epiphysis, which is the expanded articular end of a long bone that developes from a secondary ossification center, and which during the period of growth is either entirely cartilaginous or is separated from the shaft by a cartilaginous disk.