Renal cell carcinoma is the most common malignant tumor of the kidney. List the risk factors for developing RCC and describe what other areas should be evaluated if a renal mass is found during a...

Renal cell carcinoma is the most common malignant tumor of the kidney. List the risk factors for developing RCC and describe what other areas should be evaluated if a renal mass is found during a sonographic examination of the abdomen. List three intrinsic and three extrinsic causes of hydronephrosis. List three possible reasons for a falsepositive diagnosis of hydronephrosis.