This site is intended for healthcare professionals
General Practice Notebook
Medical search

Codman's triangle

FREE subscriptions for doctors and students... click here
You have 3 open access pages.

Codman's triangle is the radiographic appearance of the rim of new subperiosteal bone which forms when a lesion such as a tumour lifts the periosteum away from the bone.

The small triangle of bone is seen at the advancing margin of the lesion.

The three main causes for a Codman's triangle are:

  • osteosarcoma
  • Ewing's sarcoma
  • subperiosteal abscess

Layering of the new bone may result in an "onion skin" appearance.

Links:

General Practice Notebook
General Practice Notebook
The information provided herein should not be used for diagnosis or treatment of any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions. Copyright 2016 Oxbridge Solutions LtdĀ®. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions LtdĀ® receives funding from advertising but maintains editorial independence. GPnotebook stores small data files on your computer called cookies so that we can recognise you and provide you with the best service. If you do not want to receive cookies please do not use GPnotebook.