Fig. 10. Internal fistulas in a 33-year-old male patient with Crohn’s disease. (A) Postcontrast-enhanced coronal computed tomography image shows tethered distal ileal loop with mural hyperenhancement, forming an enterocolic fistula (white arrows). (B) There are tiny air bubbles in the urinary bladder (black arrow) and fistulous tract between the distal ileum and urinary bladder, consistent with an enterovesical fistula (white arrowheads).
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