Lobster Claw Deformity

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A deep congenital cleft between the 3rd and 4th digits of the hands or feet, due to an absent central digital ‘ray’; the lobster claw deformity is more common in the foot, and is often accompanied by syndactyly; it classically occurs in ectodermal dysplasia—EEC syndrome—ectrodactyly, ectodermal dysplasia, and cleft palate, and is associated with organ defects