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Abdomen » Gastrointestinal
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Author(s) :
Ravi Kadasne, MD
Presentation A 3 year old female child presented with an acute episode of severe pain in the abdomen. An ultrasound was performed immediately.
Caption: Transverse view of the right hypochondrium
Description: This image clearly depicts the crescent sign and the doughnut sign, typical of intussusception.
Caption: Sagittal view at the site of pain
Description: A portion of the bowel [hypoechoic] and its mesentery [brightly echogenic] is seen telescoping into another segment of the bowel [delineated by arrows].
Differential Diagnosis Intussusception

Final Diagnosis Intussusception
Discussion This case illustrates the classical ultrasound signs of intussusception. On transverse sections, a swirling pattern of alternating layers of hyper and hypo-echogenic bowel wall layers is noted.  On the sagittal section, a sandwich like appearance of alternating loops of bowel is noted.

To read more about intussusception, click here
Case References 1. Woods, B. Intussusception, child.
Follow Up This child had spontaneous resolution of pain 20 minutes after the scan was performed. A follow up ultrasound showed complete resolution of the intussusception.