Situs inversus of the fibula: Medialized fibula [Fibulanin situs inversusu: Medialize fibula]

Congenital extremity anomalies are caused by pathological changes during the development process of the embryo. exposure to toxins during 4-12 weeks of pregnancy may lead to extremity anomalies. in this article,we present a girl patient born as one of triplets at the 31st week and fifth day of pregnancy with meningomyelocele,arnold-chiari type 2 malformation,developmental dysplasia of the right hip,hypothyroidism,and lower extremity anomaly. mother had a history of antenatal usage of sodium valproate. radiographic examination of the lower extremity showed medial location of the fibula.