The Knee is the most common site of involvement, then hip elbow ankle and shoulder. Age 30-50 m>f 3:1 Characterized by multiple, small, calcified or ossified densites with a joint capsule- chondrometaplasia
Hereditary Multiple Exostosis
Observed as early as 2 or 32
Ewing Sarcoma
Commonly long tubular bones; Lower extremity particularly the femur also the humerous; Age 10-25 peak age 15yo. m>f 2:1
Osteopetrosis
Bone with a Bone; A very rare hereditary condition resulting in a generalized skeletal dysplasia. The disorder is characterized radiographically by a generalized and symmertrical increase in bone density. The medullary canals are reduced in size
