DOI: 10.1148/radiol.2302021030
Precaval Right Renal Arteries: Prevalence and Morphologic Associations at Spiral CT1
Benjamin M. Yeh, MD,
Fergus V. Coakley, MD,
Maxwell V. Meng, MD,
Richard S. Breiman, MD and
Marshall L. Stoller, MD
1 From the Departments of Radiology (B.M.Y., F.V.C., R.S.B.) and Urology (M.V.M., M.L.S.), University of California San Francisco, 505 Parnassus Ave, Box 0628, C-324C, San Francisco, CA 94143-0628. From the 2002 RSNA scientific assembly. Received August 20, 2002; revision requested October 18; final revision received June 2, 2003; accepted June 13. Address correspondence to B.M.Y. (e-mail: benyeh@itsa.ucsf.edu).

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Figure 1. Transverse CT scan in a 51-year-old woman with abdominal pain. Image demonstrates an accessory precaval right renal artery (arrows) in the lower pole of the right kidney. IVC = inferior vena cava.
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Figure 2. Transverse CT scan in a 56-year-old man with pancreatitis. Image demonstrates an accessory precaval right renal artery (arrowheads) in the lower pole of the right kidney that originates from the anterior aspect of the aorta (arrow). IVC = inferior vena cava.
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Figure 3a. Transverse CT scans in a 31-year-old woman with right flank pain and hematuria. (a) Lower pole of the right kidney is rotated anteriorly. Renal hilum at this level is rotated anteriorly more than 45° from the horizontal (angled lines). (b, c) More inferiorly, an accessory precaval renal artery (arrow) arises from the right iliac artery (arrowhead).
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Figure 3b. Transverse CT scans in a 31-year-old woman with right flank pain and hematuria. (a) Lower pole of the right kidney is rotated anteriorly. Renal hilum at this level is rotated anteriorly more than 45° from the horizontal (angled lines). (b, c) More inferiorly, an accessory precaval renal artery (arrow) arises from the right iliac artery (arrowhead).
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Figure 3c. Transverse CT scans in a 31-year-old woman with right flank pain and hematuria. (a) Lower pole of the right kidney is rotated anteriorly. Renal hilum at this level is rotated anteriorly more than 45° from the horizontal (angled lines). (b, c) More inferiorly, an accessory precaval renal artery (arrow) arises from the right iliac artery (arrowhead).
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Figure 4a. Transverse CT scans obtained at the same level in the lower pole of the right kidney in a 45-year-old woman with the clinical diagnosis of ureteropelvic junction obstruction. (a) Right renal pelvis (arrow) is dilated. (b) Right renal pelvis narrows to normal caliber at the ureteropelvic junction (arrow), and an accessory artery (arrowhead) crosses posterior to the ureter. (c) Accessory artery (arrowheads) is in precaval location.
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Figure 4b. Transverse CT scans obtained at the same level in the lower pole of the right kidney in a 45-year-old woman with the clinical diagnosis of ureteropelvic junction obstruction. (a) Right renal pelvis (arrow) is dilated. (b) Right renal pelvis narrows to normal caliber at the ureteropelvic junction (arrow), and an accessory artery (arrowhead) crosses posterior to the ureter. (c) Accessory artery (arrowheads) is in precaval location.
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Figure 4c. Transverse CT scans obtained at the same level in the lower pole of the right kidney in a 45-year-old woman with the clinical diagnosis of ureteropelvic junction obstruction. (a) Right renal pelvis (arrow) is dilated. (b) Right renal pelvis narrows to normal caliber at the ureteropelvic junction (arrow), and an accessory artery (arrowhead) crosses posterior to the ureter. (c) Accessory artery (arrowheads) is in precaval location.
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Copyright © 2004 by the Radiological Society of North America.