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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Multiple concentric ring sign in the ultrasonographic diagnosis of intussusception.

Gray scale ultrasound examination of two patients with abdominal space-occupying lesions demonstrated characteristic ring shadows on longitudinal scans. In one case a multiple concentric ring shadow resulted from an ileocolic intussusception, and in the other a "bull's eye" image was due to an infiltrating carcinoma of the pyloric antrum. A study of these patients confirms the suspicion [1] that there is a characteristic ultrasonic appearance of intussusception in bowel loops.[1]

References

  1. Multiple concentric ring sign in the ultrasonographic diagnosis of intussusception. Holt, S., Samuel, E. Gastrointestinal radiology. (1978) [Pubmed]
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