All of the following are features of pyle disease except

Answer- B. It is an epiphyseal dysplasiaMetaphyseal 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 pa ofthe shafts oflong bones is thinner than normal and there is an increased ihance of fractures.