Diseases Of Bones

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     ,   commonest primary malignant bone tumor tumor , 

  
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 after the age of 40 years are usually preceded by Paget's disease of bone or bone irradiation.

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 central central or intramedullary chondrosarcoma    
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  a cartilaginous matrix matrix "  M! ! M M            
 
      
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 clinical and radiological features may be more important for differentiation   


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  diaphyses of long bones bones

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 other bones

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