metaphyseal dysplasia

In addition, in individuals with the disorder, the long bones of the arms and legs may develop abnormally, resulting in unusual "club-like" flaring or broadening of the end portions (metaphyses) of the bones (metaphyseal dysplasia).

Metaphyseal dysplasia, also known as Pyle's disease, Pyle's syndrome, Pyle-Cohn syndrome, and Bakwin-Krida syndrome is a rare disease in which the outer part of the shafts of long bones is thinner than normal and there is an increased chance of fractures.