This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epilepsy, Subject name: Pharmacology
All are true regarding fetal hydantoin syndrome except : 
Select and explain. 
A. Digital hypoplasia, B. Macrocephaly, C. Microcephaly, D. Cleft lip
B: Macrocephaly
Answer: B: Macrocephaly 
Explanation: Macrocephaly is not a feature of fetal hydantoin syndrome Fetal hydantoin syndrome Phenytoin is teratogenic Features : Hypoplastic phalanges Cleft palate Harelip Microcephaly Due to arene-oxide metabolite