Bony Exostosis (Osteochondrosis )

Most common bone tumor in children

Solitary or Multiple

Aberrant cortical overgrowth adjacent to growth plate leading to eccentric bony growth


disturbances of growth plate development or localized bone disturbances

    First type

           HME - AD inheritance

          MED - AD inheritance


           Dsyplasia Epiphysealis Hemimelica (Trevor Disease ) occurs in infants and young children

       

     second type

           Fibrous dysplasia



Management

        X-ray characteristic

       CT scan - of pelvis , shoulder and spine


       MRI

         1.  assessing continuity of parent bone with cortical and medullary bone in an

            osteochondroma

         2.   catiliage cap size ,

         3.   impingement syndrome ,

          4. and arterial and venous   compromise




Angiogram

       AV compression


Treatment


     Solitary - Symptomatic

           very large - avoid in skeletally immature (restricts growth  )

           
    Multiple - treatment of symptomatic ones

     Angular deformity

         timed hemiphyseal stappling

         corrective osteotomy

        surgical decompression of neurovascular compromise











     




















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