Benign tumors of the renal pelvis are rare, with less than 10 cases reported in the literature. The fibroepithelial polyp, a benign mesodermal tumor, seems to be the most common type. We report a case of a fibroepithelial polyp of the renal pelvis, and discuss its clinical features and diagnostic pitfalls.

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Movable kidney is a debated entity and therefore not diagnosed in many cases. According to our experience the diagnosis should be made much more frequent in patients who suffer from loin and/or abdominal pain which is relieved by recumbent position. Twenty-nine cases of patients who suffered from loin and/or abdominal pain and were diagnosed as suffering from abnormal renal mobility by medical history, intravenous pyelogram, angiography and dynamic scanning were operated upon with a reported high rate of relief of pain (87%; 25/29). The technique employed was the modified Deming operation.

We present a case of bilateral renal cell carcinoma occurring simultaneously with a single lymph node metastasis clearly demonstrated by angiography. Radical nephrectomy, blunt enucleation of the cortical tumor in the controlateral kidney and removal of a large lymph node metastasis were performed simultaneously.

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