[Amniotic band syndrome: description of 2 clinical cases and discussion on etiopathogenesis].

The paper reports two cases in which infants were born with alterations described as the Amniotic Band Syndrome. The first one shows inferior limbs in bizarre positions, and the superior mutilated; also a cleft lip was present. The second case corresponds to a newborn with a facionucal band that almost separates the mouth from the rest of the face. Pathogenic theories are reexamined in face of the cases presented.