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Renal Puncture—A Neglected Aid in the Diagnosis of Renal Masses

By Elmer Ng, Stanford B. Rossiter and George W. Reimer


Renal arteriography and nephrotomography are useful in distinguishing between renal neoplasmas and cysts. In the great majority of cases the well-vascularized neoplasm is readily identified. However, the arteriographic diagnosis of an “avascular lesion” is incomplete. These lesions make up a widely heterogeneous group, including the common simple renal cysts, avascular and degenerated neoplasms and congenital malformations. Percutaneous puncture of these “avascular” lesions under image-amplified fluoroscopy is a safe and simple means of obtaining further diagnostic information, often of decisive value

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