PMC10293010_01
Initial contrast-enhanced computed tomography scan after administration of contrast medium. a: The image shows diffuse uniform thickening (white arrowhead) of the arterial wall from the abdominal aorta to the common iliac artery and dilation of the renal pelvis and ureter (black arrowhead). b: Diffuse uniform thickening (white arrowhead) can be seen in the abdominal aortic wall. c: Dilation of the ureter (black arrowhead) continues to the vicinity of the common iliac artery. d: Magnified image of (c). The black arrowhead shows dilation of the ureter. The white arrow shows the thickened common iliac artery wall. e: 18F-fluordesoxyglucose positron emission tomography/computed tomography shows the accumulation in the thickened region of the aortic wall (black arrowhead) and the common iliac artery (white arrowhead). f: 18F-fluordesoxyglucose positron emission tomography/computed tomography shows the accumulation (white arrowhead) in the thickened region (yellow color) of the common iliac arterial wall. The black arrowhead shows the ureteral stent (white color) just before entering the arterial wall. g: 18F-fluordesoxyglucose positron emission tomography/computed tomography shows the accumulation (white arrowhead) in the thickened region (yellow color) of the common iliac arterial wall. The black arrowhead shows the ureteral stent (white color) entering the arterial wall.
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CT revealed diffuse uniform thickening of the arterial wall from the abdominal aorta to the common iliac artery, which was clearly visible after administration of contrast medium, as well as dilation of the ureter from the renal pelvis to the vicinity of the common iliac artery (Fig. 1a-d). FDG-PET-CT scan showed the accumulation in the thickened region of the aortic wall (Fig. 1e-g).
Computed tomography findings after treatment. a: Right hydronephrosis improved (white arrowhead). b: Wall thickening from the abdominal aorta to the common iliac artery improved (white arrowhead). c: Wall thickening of the abdominal aorta improved (white arrowhead). d: Wall thickening of the common iliac artery improved (white arrowhead).
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On day 268, CT images showed no hydronephrosis and a normal aortic wall (Fig. 2).