Fig. 14. Hydronephroureterosis in a 35-year-old male patient with Crohn’s disease. (A, B) Postcontrast-enhanced coronal computed tomography images show segmental wall thickening at pelvic ileal loop and terminal ileum with slightly asymmetric bowel wall hyperenhancement and pelvic inflammation (black arrows), causing right ureteral stenosis, upstream right ureteral dilatation (white arrowheads), and right hydroneprhosis (white arrows), findings consistent with active inflammatory Crohn’s disease with hydronephroureterosis. (C) The patient underwent percutaneous nephrostomy and ureteral stent insertion for the stricture.
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