Primary Bone Tumors . Courtney Gleason September 27, 2007. Bone Tumors. Bone tumors can be primary or secondary. Secondary (metastasis) tumors are the most common malignancy of bone. Primary bone tumors are divided into benign and malignant.
September 27, 2007
-Geographic pattern of bone destruction (well defined area of lysis) with a sclerotic rim.
-Sclerotic rim (indicates that the bone has had time to react).
-Solid periosteal reaction displaying focal cortical thickening.
-Aneurysmal bone cyst
-Simple bone cyst
-Permeative pattern of bone destruction displays tiny radiolucencies between residual bone trabeculae (characteristic of rapidly growing, poorly defined lesions).
-Poorly defined bone pattern
-Periosteum shows separation from the cortex and formation of new bone.
Lytic geographic lesion.
Well-circumscribed oval lucencies. surrounded by a thin rim of radiodense bone.Enchondroma
Eccentrically located, lobulated, surrounded by sclerotic margin.Nonossifying Fibroma
Destroy surrounding cortices and produce soft tissue masses.
Codman’s triangleOsteogenic Sarcoma