Liver overlap sign (sigmoid volvulus)

Dr Vikas Shah and Dr Francis Fortin et al.

The liver overlap sign can be seen in sigmoid volvulus wherein the sigmoid loop is seen, usually on an abdominal radiograph, ascending to the right upper quadrant and projecting over the liver shadow.

In one study of 21 patients with confirmed sigmoid volvulus, the sign was present in 9 patients (43%) 1.

Article information

rID: 60286
Section: Signs
Tag: signs
Synonyms or Alternate Spellings:
  • overlapping liver sign

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Cases and figures

  • Case 1: scanogram
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