Published in:
01-05-2018 | Classics in Abdominal Imaging
The crescent-in-doughnut sign in intussusception
Published in: Abdominal Radiology | Issue 5/2018
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The crescent-in-doughnut sign describes a variation of the classical target sign of the transverse sonographic appearance of intussusception (Fig. 1).
Fig. 1
Transverse sonographic section of an ileocolic intussusception: Concentric alternating hyperechoic (indicated by black arrows) and hypoechoic rings (indicated by white arrows) represent the layers of bowel wall. Echogenic crescent represents the enclosed mesentery (indicated by red arrows)
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