Collar sign in diaphragmatic rupture

The collar sign, also called the hourglass sign, is a helpful sign for diagnosis of diaphragmatic rupture on coronal or sagittal CT/ MR images and barium studies. It refers to a waist-like or collar-like appearance of herniated organs at the level of the diaphragm.

See also

Share article

Article information

rID: 21689
Tag: cases
Synonyms or Alternate Spellings:
  • Hour glass sign
  • The collar sign of diaphragmatic rupture
  • Hour glass sign of diaphragmatic rupture

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
     Case 1 - on barium study
    Drag here to reorder.
  • Drag
    Case 2
    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.