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Presentation1.pptx, radiological imaging of intusussception.


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Presentation1.pptx, radiological imaging of intusussception.

  1. 1. Radiological imaging of intussusception. Dr/ ABD ALLAH NAZEER. MD.
  2. 2. Intussusception on plain abdominal x-ray showing the target sign. (B) Plain erect abdominal radiograph of a 6-month-old child with intussusception, showing multiple air-fluid levels consistent with intestinal obstruction.
  3. 3. Ultrasound scan showing the doughnut appearance (target lesion) of an intussusception
  4. 4. Longitudinal ultrasound of an intussusception—the pseudokidney sign.
  5. 5. Air reduction of an ileocolic intussusception. (B) Barium enema showing intussusceptum in the distal ascending colon.
  6. 6. Meniscus and coiled spring sign of intussusception.
  7. 7. Ilio-colic intussusception.
  8. 8. Meniscus sign of intussusception at the hepatic flexure on barium enema.
  9. 9. CT is the most effective and accurate diagnostic technique. Intussusception can be confidently diagnosed on CT because of its virtually pathognomonic appearance. It appears as a complex soft tissue mass (sausage-like or target-like appearance), consisting of the outer intussuscipiens and the central intussusceptum. There is often an eccentric area of fat density within the mass representing the intussuscepted mesenteric fat, and the mesenteric vessels are often visible within it. Recently, with the signs of target or sausage, mesenteric fat and vessels, abdominal CT scan has been reported to be the most useful imaging technique, with a diagnostic accuracy is 58%-100%. However, imaging modalities are limited in determining the primary cause of intussusception as well as in determining the presence or absence of ischemic injury at the involved bowel segment, which requires immediate surgery. CT Appearance.
  10. 10. Ileocolic Intussusception from an adenocarcinoma causing bowel edema..
  11. 11. ileocolic intussusception caused by mesenteric lymphadenitis.
  12. 12. (jejunojejunal) intussusception (arrows).
  13. 13. jejunojejunal intussusception (arrows).
  14. 14. jejunojejunal intussusception (arrows)
  15. 15. jejunoduodenal intussusception (arrows).
  16. 16. colocolic intussusception.
  17. 17. enteroenteric intussusceptions (arrows).
  18. 18. Ileocolic intussusception
  19. 19. Colocolic intussusception caused by a lipoma.
  20. 20. Colocolic intussusception secondary to adenocarcinoma
  21. 21. ileocolic intussusception caused by mesenteric lymphadenitis.
  22. 22. Ileoileal intussusceptions.
  23. 23. Thank You.