Symbrachydactyly: Finger nubbins are not always amniotic band disruption sequence

ABSTRACTAlthough congenital hand anomalies associated with finger nubbins may be produced by amniotic band disruption sequence (ABDS), symbrachydactyly should be considered in the differential diagnosis. ABDS usually affects more than one limb but symbrachydactyly largely is limited to one upper ext