Poland syndrome: An uncommon, unique pattern of one-sided malformations that is characterized by a defect of the chest muscle (pectoralis) on one side of the body and webbing and shortening of the fingers (cutaneous syndactyly) on the hand on the same side. Its cause is uncertain, and it does not appear to run in families. Treatment may include reconstructive surgery. Also known as absence of the pectoralis muscle with syndactyly.
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Last Editorial Review: 7/1/2016