Target sign (intussusception)

The target sign of intestinal intussusception, also known as the doughnut sign or bull's eye sign.

The appearance is generated by concentric alternating echogenic and hypoechogenic bands. The echogenic bands are formed by mucosa and muscularis whereas the submucosa is responsible fo the hypoechoic bands.

See also


Inspired signs
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Article Information

rID: 3906
Section: Signs
Synonyms or Alternate Spellings:
  • Target sign of intussuception
  • Doughnut sign of intussusception
  • Donut sign (intussusception)
  • Bull’s eye sign (intussusception)

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    Figure 1: target photo
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    Case 1
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    Figure 2: doughnut photo
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     Case 3
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    Case 4
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    Target sign
    Case 5
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    Target sign of In...
    Case 6
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    High frequency li...
    Case 7
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    Case 8
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