AVP and postaxial polydactyly-anterior pituitary anomalies-facial dysmorphism syndrome: •AVP-neurophysin II gene alterations•Wolfram (DIDMOAD) syndrome•Septo-optic dysplasia•Schinzel-Giedion syndrome•Culler-Jones syndrome•Alstrom syndrome•Hartsfield syndrome•Webb-Dattani syndrome•X-linked defects with subnormal AVP levels