Apple core sign (femur)

The apple core sign has been used to describe the circumferential erosion of the femoral neck seen in synovial chondromatosis. Although this is the most common process that may lead to an apple core erosion of the femoral neck, this has also been observed with:

See also 

Share article

Article information

rID: 21966
Section: Signs
Tag: cases, refs
Synonyms or Alternate Spellings:
  • Apple core sign of the femur

Support Radiopaedia and see fewer ads

Cases and figures

  • Figure 1: apple core
    Drag here to reorder.
  • Case 1
    Drag here to reorder.
  • Updating… Please wait.

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

     Thank you for updating your details.