Intussusception CT

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Sargun Singh Walia M.B.B.S.[2]

Overview

CT scan may be helpful in the diagnosis of intussusception. CT scan maybe used when other image modalities like x-ray and ultrasound have not given positive results but suspicion of intussusception is high. CT scan is also used to characterize the pathology (lead point) once intussusception has been diagnosed by ultrasound. CT scan has its drawbacks in children as it is time consuming and leads to substantial radiation exposure.

CT

  • CT scan may be helpful in recognizing the case of intussusception[1]
  • CT scan cannot be used to treat/reduce the intussusception
  • Drawbacks of using CT scan in children are as follows:
  • CT scan is used in patients when other imaging modalities are unable to recognize intussusception
  • CT scan can be used to recognize the lead point[2]
  • CT scan is also used to characterize the pathology once intussusception has been diagnosed by ultrasound
Multiple Intestinal Intussusceptum. A - Intussusceptien; B - Intussusceptum; C - Distended loop of bowel of small bowel; White arrow - Doughnut sign[3]</ref>; Dark arrow - Hemangioma Source: See page for author [CC BY 2.0 (http://creative1ommons.org/licenses/by/2.0)], via Wikimedia Commons
Colo-Colic intussusception due to lipoma Source:Case courtesy of Dr Chris O'Donnell, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/16388">rID: 16388</a>

References

  1. Yu ML, Lee KH, Li YL (2017). "The crescent-in-doughnut sign in intussusception". Abdom Radiol (NY). doi:10.1007/s00261-017-1266-5. PMID 28780677.
  2. Navarro O, Daneman A (2004). "Intussusception. Part 3: Diagnosis and management of those with an identifiable or predisposing cause and those that reduce spontaneously". Pediatr Radiol. 34 (4): 305–12, quiz 369. doi:10.1007/s00247-003-1028-0. PMID 14534754.
  3. <ref name="pmid28780677">Yu ML, Lee KH, Li YL (2017). "The crescent-in-doughnut sign in intussusception". Abdom Radiol (NY). doi:10.1007/s00261-017-1266-5. PMID 28780677.