Bone 4.txt

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Author:
tyvachon
ID:
43363
Filename:
Bone 4.txt
Updated:
2010-10-19 12:02:51
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bone lesions radiology res
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bone lesions radiology resident
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  1. Bone 4
  2. Bone Lesion by Location-CENTRAL
    • Enchondroma
    • Central Chondrosarcoma
    • Ewing Sarcoma
    • Primary Lymphoma
    • MFH
    • Simple Bone Cyst
    • EG
    • Fibrous Dysplasia
  3. Bone Lesion by Location-ECCENTRIC
    • Osteosarcoma
    • Chondromyxoid Fibroma
    • ABC
    • Giant Cell Tumor
  4. Bone Lesion by Location-CORTICAL
    • Osteoid Osteoma
    • Ossifying Fibroma
    • Osteochondroma
    • Adamantinoma
    • NOF/ FCD
    • Fibrous Dysplasia (Occasionally)
  5. Bone Lesion by Location-SURFACE
    • Parosteal Osteosarcoma
    • Periosteal Osteosarcoma
    • Juxtacortical Chondroma
    • Giant Cell Tumor of the Tendon Sheath
  6. Bubbly Bone Lesion
    • FEGNOMASHIC
    • Fibrous Dysplasia (No Periosteal Reaction)
    • EG (< 30yrs)
    • Enchondroma (Calcification Except in Fingers, Painless)
    • Giant Cell Tumor (Epiphysis Closed, Abuts Articular Surface, Well Defined, NO Sclerotic Margin, Eccentric, DDX: Desmoplastic Fibroma)
    • NOF > 2cm/ FCD < 2cm (< 30yrs, Cortically Based, Painless)
    • Osteoblastoma
    • Myeloma/ Mets (> 40yrs)
    • ABC (< 30yrs, Expansile, Eccentric)
    • Simple Bone Cyst (< 30yrs, Central)
    • Hyperparathyroidism (Brown Tumor, Look for Other Evidence of HPT)
    • Hemophiliac Pseudotumor
    • Infection (Bony Sequestrum), Intraosseous Lipoma
    • Chondroblastoma (< 30 yrs, Epiphyseal)
    • Chondromyxoid Fibroma (Eccentric, Proximal Tibia or Distal Femur, No Calcified Matrix)
    • Lytic Pagets
  7. Lesions < 30
    EG, NOF/FCD, ABC, SBC, Chondroblastoma
  8. Posterior Vertebral Body Scalloping
    • Dural Ectasia (NF1, Marfans, Ehlars-Danlos)
    • Increased Pressure (Neoplasm, Syrinx, Comm. Hydrocephalus)
    • Bone Resorption (Acromegaly)
    • Congenital (Achondroplasia, OI, Mucopolysaccharidoses such as Hunters, Hurlers and Morquios)
    • Physiologic
    • Ankylosing Spondylitis (Arachnoid Diverticula)
  9. Prominent Osteophytes/Enthesophytes
    • DISH
    • Ossification of the ALL and/or PLL
    • Acromegaly
    • Retinoid Toxicity (Used in Treatment of Ichthyosis)
    • DJD
    • Fluorosis
    • Seronegative Spondoloarthropathy (Psoriatic, Reiter�s)
  10. Atlanto-Axial Subluxation (> 2.5 mm in Adult)
    • RA/ JRA
    • Downs Syndrome
    • Trauma
    • Seronegative Spondoloarthropathies
    • SLE
    • Morquio Syndrome
  11. Fusion of the Cervical Spine
    • JRA (Posterior Elements)
    • Klippel-Feil (Vertebral Body Fusion, Associated with Sprengel�s Deformity in 25%- Omovertebral Bone)
    • Ankylosing Spondylitis
    • Myositis Ossificans Progressiva (Ligamentum Nuche Calcification)
  12. Basilar Invagination- Primary
    • Odontoid Process Tip >5mm Above Chamberlain�s Line (Hard Palate to the Foramen Magnum)
    • Primary Developmental (Associated with Chiari, Syrinx)
  13. Basilar Invagination - Acquired:
    • PF ROACH
    • Paget�s
    • Fibrous Dysplasia
    • Ricket�s
    • Osteogenesis Imperfecta/ Osteomalacia
    • Achondroplasia
    • Cleidocranial Dysostosis
    • Hyperparathyroidism/ Hurler (Mucopolysaccharidosis)
  14. Odontoid Erosion
    • RA
    • Amyloid
    • Atypical Infection
  15. Vertebral Body/ Pedicle Tumor - BENIGN
    • Hemangioma
    • EG
    • Giant Cell Tumor
    • Osteoid Osteoma
  16. Vertebral Body/ Pedicle Tumor � MALIGNANT
    • Mets
    • Myeloma
    • Lymphoma
  17. Periosteal Reaction in Multiple Bones (adult)
    • Hypertrophic Pulmonary Osteoarthropathy (Painful)
    • Pachydermoperiostitis (Primary HPO)
    • Thyroid Acropachy (Painless)
    • Vascular Insufficiency
    • Flurosis
    • Hypervitaminosis A
    • Fractures
    • Infection (Usually Focal)
    • Tumor (Usually Focal)
  18. Focal Cortical Thickening
    • Stress Fracture
    • Osteoid Osteoma
    • Osteomyelitis
    • Tumor (Osteosarcoma, Ewing�s, Lymphoma)
  19. DDx For Osteoid Osteoma
    • Chronic Infection with Brodie�s Abscess
    • Stress Fracture

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