Poland syndrome is a condition that is present at birth where there is a problem with muscle development that affects one side of a child’s body.
Poland syndrome – also known as Poland sequence – is a congenital (present at birth) disorder. The main characteristic of Poland syndrome are underdeveloped muscles on one side of the body, which results in problems with the chest, shoulder, arm or hand on that side of the body.
Signs and symptoms of Poland syndrome – as well as the severity of the condition – vary from person-to-person, even within the same family. Though the condition usually appears sporadically and is not passed down in families, sometimes multiple members of the same family have the disorder.
The cause of Poland syndrome is not fully understood, but many experts believe that it may be due to a disruption of blood flow during about the sixth week of fetal development.
Signs and symptoms of this condition include:
Abnormalities of the lung or kidney on the affected side
Brachydactyly (hand that didn’t properly develop, including short fingers)
Chest that appears concave (curves inward) on one side
Heart that is abnormally located in the right side of the chest (dextrocardia)
Ribs that are visible due to little fat under the skin