Presentation
Patient presented with pain in the right iliac fossa, radiating to the periumbilical region. On examination, a fixed and tender mass was palpable over the right iliac fossa.
Patient Data
There is pulling of the terminal ileum into the cecum most evident on the axial set of images in the right iliac fossa, with a resultant homogenously dense rounded mass also seen in the superficial aspect, adjacent to the anterior abdominal wall.
This is re-demonstrated on the coronal and sagittal planes, where a bowel within bowel appearance forming concentric rings (better known as the 'target sign') is also seen, which is a classical appearance in keeping with intussusception.
Case Discussion
Ileocecal intussusception is relatively rare when compared with other types of bowel intussusception, and usually occurs secondary to a lead point in the cecum, ileum or appendix such as a lipoma, inflammatory or hamartomatous polyps, bowel carcinoma, lymphoma or even a Meckel diverticulum. Periappendiceal mucoceles or local inflammatory processes may also cause this.
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