Paget disease (mixed)


  • Idiopathic, chronic, slowly progressive disease of bone in the elderly.
  • Abnormal resorption and deposition of bone, leading eventually to sclerosis and expansion of the effected bone.
  • The jaws are involved in approximately 20% of the cases.
  • It can be divided into three stages:
    • 1st stage – Bone resorption: Generally radiolucency/osteoporosis)
    • 2nd stage – Ostoblastic repair (mixed radiolucency/radiopacity)
    • 3rd stage – Sclerosing phase (haphazard deposition of sclerotic bone, cotton wool appearance.
  • Other radiographic features: loss of lamina dura and obliteration of the periapical ligament spaces, hypercementosis, external root resorption.

Differential diagnosis


Case of Paget disease