Nine Syndromes With Overlapping Features:
- Aarskog syndrome
- Williams syndrome
- Noonan syndrome
- Dubowitz syndrome
- Brachman-DeLange syndrome
- Toluene syndrome
- Fetal hydantoin syndrome
- Fetal valproate syndrome
- Maternal PKU fetal effects.
*None of these syndromes include all three Fetal Alcohol Syndrome facial features (Smooth philtrum, Thin vermillion border, and Short palpebral fissures), and none are the result of prenatal alcohol exposure which is what sets it apart from the syndromes listed above.