DETECTION OF SMALL RENAL TUMORS

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Abstract
Detection of small renal masses is significantly aided by routine intravenous urography using higher doses of contrast medium in combination with body section roentgenography during the nephrographic phase. This technique provides highly reliable renal contour visualization. Therefore, abnormal contours will be readily recognized. Interruption of a normal renal outline alone, without definite visualization of a mass, is also frequently of diagnostic significance. These contour changes will focus attention on masses that produce uncharacteristic, minimal, or even no collecting system deformity.

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