🧬 SyndromeScope
Syndrome reference sheet
Generated 12 Oct 2026
Pediatrics · Pediatrics / Neonatology Fetal hydantoin syndrome
Also known as: Fetal phenytoin syndrome
Teratogenic effects of phenytoin exposure in utero.
- Medical specialty
- Pediatrics
- Subspecialty
- Pediatrics / Neonatology
- Sex & age distribution
- Male: affected; Female: affected; Children: yes, congenital
- Gene(s) involved
- EPHX1
Etiology & mechanism
Arene oxide metabolites causing teratogenesis.
Gene(s) involved (1)
EPHX1
Symptoms & signs (5)
cleft lip and palatedevelopmental delaygrowth restrictionmicrocephalynail hypoplasia