[Partial elective nephrectomy].

Introduction: Partial nephrectomy is widely accepted as a therapeutic modality in renal cell carcinoma (RCC) in patients with single kidney, bilateral tumor or deteriorated renal function. Currently, long-term survival studies have consolidated partial nephrectomy as the treatment of choice for RCC in selected patients with normal contralateral kidney.

Material And Methods: Between July 1990 and January 2008, a total of 102 partial nephrectomy were performed on 100 patients with pre-operative ultrasonography diagnosis of renal carcinoma in 94 cases and complex renal cysts in 6 cases.

Case report: MRI in the diagnosis of testicular Leydig cell tumour.

We report the appearance of three cases of Leydig cell tumours on MRI. This imaging method showed well-defined and peripheral intratesticular tumours displaying marked and homogeneous enhancement when contrast medium was used. This latter finding was only observed in Leydig cell tumours when they were compared in a series of 104 patients with different scrotal pathologies.

Renal smooth muscle tumor with features of lymphangioleiomyomatosis. Problems in histological diagnosis.

A 44-year-old woman with left kidney tumor involving the perirenal and retroperitoneal lymph nodes is presented. Imaging findings including ultrasonography and computerized tomography showed renal and para-aortic masses and no features of lymphangioleiomyomatosis or angiomyolipoma were seen. The histopathological examination was considered as a renal smooth muscle tumor with features of lymphangioleiomyomatosis.