[The congenital absence of the femur. A report of 2 cases]. / Ausencia congénita de fémur. Informe de dos casos.

We present two patients with congenital femoral absence, in six year period, in two hospitals of Minatitlán, Veracruz, Mexico. The first case is a six-year-old male. He begin to walk at four year old. The second case is a twelve-month female, who the walk is not started. Furthermore, she have another muscle-skeletal malformations. None of the have received surgical treatment. We give information about of several classifications of femoral congenital malformations.