Diagnosis may be made on physical features alone, if a person has an arm or hand bone abnormality and a personal or family history of heart problems. If the symptoms aren't enough to diagnose, a person may undergo genetic testing for the mutations associated with the syndrome.
Holt–Oram syndrome
Smith–Magenis syndrome
Marshall–Smith syndrome
Laron syndrome
Hanhart syndrome
Ring chromosome 20 syndrome
Wilson–Turner syndrome
Turner syndrome