Crossed renal ectopia with rectal cancer: A case report

Figure 1 Imaging and endoscopic examination of rectal cancer. A: Colonoscopy shows a continuous intestinal mass 12 cm away from the anal margin; B: Digestive tract imaging shows rectal space-occupying lesions; C: Abdominal contrast-enhanced computed tomography shows rectal mass; D: Abdominal enhanced magnetic resonance imaging shows rectal mass.

Figure 2 Imaging examination and example images of crossed renal ectopia. A: Abdominal contrast-enhanced computed tomography Indicating crossed renal ectopia (CRE); B: Three dimensional imaging shows both kidneys on the left side; C: The left renal vein is located behind the abdominal aorta; D: Schematic diagram of CRE.