Intussusception in Adults: The Role of MDCT in the Identification of the Site and Cause of Obstruction

Figure 1

Enteroenteric intussusception. Axial CT images (a, b) demonstrate a round mass with “target” pattern and central hypodense area of mesenteric fat in which vessels are seen as linear enhanced structures (arrow). Oblique CT reformatted images (c, d) oriented parallel to the longitudinal axis of the intussusception depict intussusception as a large “sausage-shaped” mass, showing length of involvement. Gas-fluid levels in the dilated proximal loops are signs of small bowel obstruction.

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