We report a 3-year-old girl with fetal hydantoin syndrome (FHS) whose
mother had received phenytoin 600 mg/day throughout gestation. She had
growth retardation, mental deficiency, craniofacial dysmorphism and i
ris colomobata specific to FHS. However, the patient did not have the
distal phalangeal hypoplasia which is associated with FHS; instead, sh
e had polydactyly of the sight foot. This seems to be the first FHS ca
se in the literature with polydactyly.