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Liebenberg syndrome is a condition that causes abnormal growth of the arms, resulting in characteristic arm malformations that can vary in severity. Bone, bones, and other tissues in the elbows, forearms, wrists, and hands have the same pattern as those in the lower limbs. The stiff elbows function more like knees, and are unable to move as freely as elbows do. In addition, muscles and tendons that are usually found only in the hands and not in the feet are often missing in people with Liebenberg syndrome. Some affected individuals also have joint deformities that restrict movement of the elbows, wrists, and hands. In people with this disorder, the lower limbs are normal. Individuals with Liebenberg syndrome have no other health problems relating to this illness, but life expectancy is normal.
Source link: https://medlineplus.gov/genetics/condition/liebenberg-syndrome
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