Periosteal chondroma (juxtacortical chondroma)

Skip to end of metadata
Go to start of metadata

Tumor biology

  • Rare, slow-growing, benign, generally active cartilage lesion
  • Not known to metastasize
  • Arises on the surface of bone with underlying cortical scalloping


Second through fourth decades


M:F = 1:1


  • Pain, tenderness at site of lesion
  • Often accompanied by swelling

Physical findings

Localized swelling may be present

Plain films

  • Lesion eccentric, subperiosteal in location, external to cortex
  • Medullary canal not involved
  • Most common site: metaphyseal cortex of long bones (especially proximal humerus and femur), small tubular bones of hands and feet


Tumor effect on bone
  • Periosteal-based soft tissue lesion
  • Typically causes erosion/scalloping.
Bone response to tumor
  • Lesion is well defined, shallow, geographic
  • Sharp sclerotic interface with underlying eroded cortical margin
  • Peripheral periosteal elevation and reaction may be seen
  • Scattered calcifications may be present
  • Lesions may be highly calcified and radiopaque

Cortical scalloping/erosion by the overlying juxtacortical mass

Soft tissue mass

Always present

Differential diagnosis

  • Periosteal chondrosarcoma
  • Periosteal osteosarcoma
  • Soft tissue neoplasm eroding adjacent cortical bone


  • Gross: Cartilage nodules located on surface of cortex
  • Microscopic: Hyaline cartilage showing variable cellularity
  • Cytological atypia may be present; correlation with radiologic appearance critical
  • New bone formation may be present at interface of lesion and underlying cortical bone

Diagnosis and treatment

  • Treatment of choice: en bloc resection with an intact narrow rim of normal bone
  • Curettage has relatively high risk of recurrence
  • Spilling cartilage into soft tissues by curettage increases risk of local relapse
Unknown macro: {corr}
Unknown macro: {springerlink}
Unknown macro: {panel}

Internet resources validated by

Unknown macro: {cache}
Unknown macro: {report-on}
Error formatting macro: rss: java.lang.IllegalArgumentException: Invalid uri ' > url encode%&xml_feed=1': Invalid query
Unknown macro: {panel-related}
Unknown macro: {rate}
Cite this page
Unknown macro: {div}

. *

Unknown macro: {page-info}

*. _

Unknown macro: {builder-spacetitle}

. _In: OrthopaedicsOne - The Orthopaedic Knowledge Network. Created

Unknown macro: {page-info}

. Last modified

Unknown macro: {page-info}


Unknown macro: {page-info}

. Retrieved

Unknown macro: {report-info}

, from

Unknown macro: {page-info}


Unknown macro: {builder-hide}
Page contributions
Unknown macro: {div}

The following individuals have contributed to this page:

Unknown macro: {contributors-summary}