Abdominal Radiology

, Volume 42, Issue 5, pp 1612–1613 | Cite as

The “O” sign

  • Cane F. HoffmanEmail author
  • Larkin L. Selman
  • Raymond B. Dyer
Classics in Abdominal Imaging


Compliance with ethical standards


No funding was received for this study.

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

This article does not contain any studies with human participants or animals performed by any of the authors.

Informed consent

Statement of informed consent was not applicable since the manuscript does not contain any patient data.


  1. 1.
    Pieroni S, Sommer EA, Hito R, Burch M, Tkacz JN (2010) The “O” sign, a simple and helpful tool in the diagnosis of laparoscopic adjustable gastric band slippage. Am J Roentgenol AJR 195:137–141CrossRefGoogle Scholar
  2. 2.
    Sonavane SK, Menias CO, Kantawala KP, et al. (2012) Laparoscopic adjustable gastric banding: what radiologists need to know. RadioGraphics 32:1161–1178CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  • Cane F. Hoffman
    • 1
    Email author
  • Larkin L. Selman
    • 1
  • Raymond B. Dyer
    • 1
  1. 1.Department of Radiology, Wake Forest Baptist Medical CenterWake Forest University School of MedicineWinston-SalemUSA

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