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  • Title: A case of giant arteriovenous shunt in a renal carcinoma.
    Author: Rangel A, Albarrán H, Gómez-Orta F, Soriano M, Baduí E.
    Journal: Rev Invest Clin; 1997; 49(4):277-80. PubMed ID: 9707992.
    Abstract:
    We present the case of a 51 year-old-white male with a giant right renal arteriovenous fistula secondary to a carcinoma. Neither the aorta nor the kidneys were visualized after the injection of 60 mL of contrast media into the abdominal aorta. Moreover, the right kidney could not be visualized after 30 mL of contrast media were injected selectively into the right renal artery. This was due to a great arteriovenous shunt through the right kidney. The right renal angiogram was obtained through digital imaging, after injecting contrast media into the right renal artery, previously occluded by a balloon-catheter. The image of an hypervascularized nephroma was obtained, depicting an important arteriovenous shunt of the contrast material toward the inferior vena cava from a fistula located in the right inferior renal pole. The occlusion of the right renal artery was partially achieved by injecting 40 mL of boiling contrast media, followed by small fragments of Gelfoam suspended in the contrast substance. The balloon-catheter remained inflated in the right renal artery until a nephrectomy was performed. As far as we know, a case in which the aorta and renal circulation are unable to be seen by means of conventional angiography, because of the presence of a renal arteriovenous shunt to the fistula, has not been described.
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