Crohn disease | Figure 1
CincyKidsRad
Cincinnati Children's Radiology
Crohn disease
AP radiograph (image 1) and focused AP radiograph of the right lower quadrant (image 2) during small bowel follow-through show findings of Crohn disease affecting the terminal ileum (arrow). The terminal ileum is isolated, has luminal narrowing, and irregularity of the luminal surface. Crohn disease is an inflammatory bowel disease. It is most commonly diagnosed in the second or 3rd decade of life. The terminal ileum is the most commonly affected segment of bowel although any bowel segment can be affected. Features of Crohn disease include skip lesions, transmural inflammation, and stricturing or penetrating complications.