Fibrous dysplasia (radiopacity)

Features

  • 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.

Differential diagnosis

Cases

Case 1

Fibrous dysplasia

Case 2

Fibrous dysplasia

Case 3

A case fibrous dysplasia. ground glass- or -orange peel- appearance.

Case 4

A case of fibrous dysplasia in the upper jaw