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The hourglass sign

  • Classics in Abdominal Imaging
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Abstract

The Hourglass sign is a useful imaging clue for diagnosing diaphragmatic ruptures with viscera herniation on multidetector CT, with a sensitivity ranging from 16% to 63% and a specificity around 98%–100%. This sign is also commonly found in the literature under the name “Collar sign,” first described in 1995 by Worthy et al. It refers to the waistlike constriction of the herniated structure at the site of the diaphragmatic rupture.

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References

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Authors and Affiliations

  1. Service de Radiologie 1, Hôpitaux Universitaires de Strasbourg, 1 avenue Molière, Strasbourg, France

    Aina Venkatasamy, Tri Thai Huynh & Francis Veillon

  2. Service de Gastro-entérologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France

    Bénédicte Caron

Authors
  1. Aina Venkatasamy
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  2. Tri Thai Huynh
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  3. Bénédicte Caron
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  4. Francis Veillon
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Corresponding author

Correspondence to Aina Venkatasamy.

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No funding was received for this article.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards. Informed consent was obtained from the patient and no IRB approval was required for this retrospective study. This article does not contain any studies with animals performed by any of the authors.

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Venkatasamy, A., Huynh, T.T., Caron, B. et al. The hourglass sign. Abdom Radiol 43, 1508–1509 (2018). https://doi.org/10.1007/s00261-017-1321-2

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  • DOI: https://doi.org/10.1007/s00261-017-1321-2

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