The morphological appearance can be helpful in determining the cause of a<unk>  (for example, if other features of periostitis are present), but is usually not enough to be definitive. Diagnosis can be helped by establishing if bone formation is localized to a specific point or generalized to a broad area. The appearance of the adjacent bone will give clues as to which of these is the most likely cause. Appearances include solid, laminated, spiculated, and the Codman triangle.
Periosteal reaction
Bone erosion
Hypercementosis
Osteophyte
Heterotopic ossification
Bone decalcification
Capsular contracture
Condylar resorption