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"Since June 1978, 40 patients who had been taken renal arteriographies were analysed and following results were obtained. 1. Male to female ratio was approximately 1:1 and peak incidence was in the fifth decade. 2. The symptoms and signs as indications for renal arteriography were flank pain, gross hematuria, renal trauma, flank and abdominal mass, in decreasing order of frequency. 3. Renal arteriographies were performed in 8 patients who showed gross hematuria but normal excretory urography. In 6 patients arteriography showed clearly the absence of abnormal vasculature within the kidney. In the other two, the kidney were identified as having inflammatory change and arteriovenous malformation, respectively. 4. Arteriographically detected extravasation of urine which were not identified on excretory urography was noted in one case. 5. The over-all accuracy of the angiographic diagnosis of simple benign cyst and renal tumor was 100%."
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