Amniotic constriction bands
Alternate Names : Pseudo-ainhum, Streeter's dysplasia, Amniotic band sequence, Amniotic band syndrome
Definition
Amniotic constriction bands are strands of the fluid-filled sac (amniotic sac) that surrounds a baby in the womb. They may cause a congenital (present from birth) deformity of the face, arms, legs, fingers, or toes.
Overview, Causes, & Risk Factors
Amniotic constriction bands are caused by damage to a part of the placenta called the amnion. The placenta carries blood to a baby still growing in the womb. Damage to the placenta can prevent normal growth development. Damage to the amnion may produce fiber-like bands that can trap parts of the developing baby. These bands reduce blood supply to the areas and cause them to develop abnormally.
Amniotic constriction bands are rare.
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