Codman triangle periosteal reaction

Codman triangle is a type of periosteal reaction seen with aggressive bone lesions. With aggressive lesions, the periosteum does not have time to ossify with shells of new bone (e.g. as seen in single layer and mulitlayered periosteal reaction), so only the edge of the raised periosteum will ossify.

The Codman triangle may be seen with aggressive lesions:

History and etymology

It was first described by Ribbert in 1914 2. However, it is named for Ernest Amory Codman, who described it in the setting of Ewing sarcoma 3.

See also

Edit Article Share
URL of Article

Article Information

rID: 1142
System: Musculoskeletal
Sections: Gamuts, Signs
Tag: refs
Synonyms or Alternate Spellings:
  • Codman's triangle
  • Codman's triangles
  • Codman triangles
  • Drag
    Codman triangle

...
    Case 1: Codman triangle
    Drag here to reorder.
  • Drag
    Hollow arrow show...
    Case 2: Codman triangle
    Drag here to reorder.
  • Drag
    Case 3
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert_accept

    Error Unable to process the form. Check for errors and try again.

    Alert_accept Thank you for updating your details.