Bone Path Gen Info

Front 1

Simple Bone Cyst (hemorrhagic bone cyst, idiopathic bone cavity)

Back 1

* Cause unknown
- Trauma-hemorrhage theory: trauma causes a hematoma; the bone does not repair, and the clot liquifies
- Does not explain continued growth

Front 2

Aneurysmal bone cyst

Back 2

* Intra-osseous accumulation of blood-filled spaces, with connective tissue and reactive bone
* Cause and pathogenesis unknown

Front 3

Focal osteoporotic marrow defect

Back 3

* Non-pathologic process - asymptomatic and incidental (this is normal)
* Area of marrow of sufficient size to be seen radiographically

Front 4

Paget disease of bone (Osteitis Deformans)

Back 4

* Abnormal and anarchic resorption and deposition of bone
* Bones are distorted and weakened
* Cause unknown - genetic, inflammatory, endocrine, viral?
* Geographic variation (more common in Britain)

Front 5

Central Giant Cell Granuloma

Back 5

Two forms: Non-aggressive (most cases) and aggressive

* Nonaggressive: Asymptomatic, slow growth, no cortical perforation or root resorption

* Aggressive: Pain; Expansion of bone, cortical perforation, root resorption; Much more likely to recur

Front 6

Cemento-osseous dysplasia

Back 6

* Very common (most common fibro-osseous lesion found in clinical practice)
* Focal, periapical, and florid types are probably all variants of the same process
* Can be diagnosed radiographcally
* May progress to osteomyelitis

Front 7

Cemento-osseous dysplasia
(Periapical)

Back 7

Pulps usually vital; in non-restored teeth, or those with insignificant restorations
* Differential diagnosis: hypercementosis, cementoblastoma, radicular cyst, radicular granuloma

Front 8

Cementoblastoma

Back 8

* Odg benign tumor of cementoblasts
* True cementoma, not just hypercementosis