- Idiopathic replacement of bone with fibrous tissue.
- It can affect just one bone (monostotic) or multiple bones (polyostotic). Jaw involvement is common (especially the maxilla).
- Adolescents.
- Clinical signs and symptoms: Painless, slow and progressive enlargement of the affected bone.
- Radiodensity: Initially ill-defined radiolucency, gradually fine trabeculae become evident to produce the typical -ground glass- or -orange peel- appearance.
Fibrous dysplasia (radiopacity)
