Bone Tumors Flashcards
Sclerotic rim indicates
Slow growth
Moth eaten pattern
Numerous small holes of varying ages in cortical and trabecular bone
Aggresive behavior
Numerous elingates holes along cortex
Aggresive behavior
Osteoblastic
Buttrssing ( wavy periositis)
Benign
Aggressive patterns
Lamination- onion peel
Codman triangle
Spiculations
Sunburst
Hair on end
Thick rim of new bone
Benign
Nonossifying fibroma
Osteoma
Brodie abscess
Fibrous dysplasia
Thin rim or no rim
More active lesion
Enchondromas
Phalanges
Osteosarcoma
Araound the knee
Giant cell tumor
Araound the knee
Hemangioma
Spine and skull
Chondrosarcoma
Innominate bone
Chondroma
Sacrum and clivus
Adamantinoma
Mid tibia
Mandible
Central lesions ( usually benign)
Enchondroma
Unicameral bone cyst
Eosinophilic granuloma
Eccentric lesions
Aneurysmal bone cyst Osteosarcoma NOF Giant cell tumor Chondromyxoid fibroma
Cortical lesions ( most commonly benign)
Cortical defect
Cortical desmoid
Osteoid osteoma
Periosteal chondroma
Para osteal lesions
All osseous, cartilaginous, fibrous malignancies
Osteochondroma Myositis ossificans (should be separate from bone
Osteoid osteoma
30
Osteoblastoma
Spine
Osteosarcoma
40
Chondroma
55
Chondromblastoma
Femur
Chondrsarcoma
25
NOF
Tibia
Fibrosarcoma
Femur
GIant cell tumor
Femur
Malignant fibrous histiocytoma
Femur
Hemangioma
Skull
Neurofibroma
Skull
Chordoma
Spine
Simple cyst
Humerus
Adamantinoma
Tibia
Ewings tumor
Femur
Hallmark is pain
Radiolucent nidus
5-25 yo
Osteoid osteoma
Osteoblastoma appearance
Expansile lytic
Sclerotic >2cm ( giant osteoid osteoma)
Mc primary amlignant bone tumor
Axial skeleton most commonly affected
Skull, spine, ribs, pelvis
Multiple myeloma
95% > 40yo