A rare<unk> l disorder where deletion of a portion of<unk>  1 results in various abnormalities such as retarded fetal growth, facial anomalies, osteoporosis, mental retardation and hearing loss.
Chromosome 1, deletion q21 q25
22q11.2 deletion syndrome causes
Chromosome 2p16.1-p15 deletion syndrome
Metaphyseal dysostosis mental retardation conductive deafness
X linked mental retardation-precocious puberty-obesity
Down syndrome other imaging findings
Polycystic kidneys, severe infantile, with tuberous sclerosis
22q11.2 deletion syndrome pathophysiology