Amniotic Constriction Bands
Alternate Names : Pseudo-Ainhum, Streeter's Dysplasia
DefinitionThis is a congenital (present from birth) deformity of the limbs (arms or legs) or digits (fingers or toes) caused by a type of damage to the placenta which cuts off their blood supply and prevents normal development.
Overview, Causes, & Risk Factors
Damage to the amnion (part of the placenta) may produce fibrous bands that can entrap the limbs of the fetus. These bands compress the area of the limb over which they run, reducing blood supply and causing the limb to develop abnormally. This is a relatively rare disease.
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