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.

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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

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Cases and figures

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     Case 1 - on barium study
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    Case 2
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