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ABSTRACT: ObjectiveThe aim of the study was to report the experience of National Cancer Institute (NCI), Cairo University, Egypt, in managing various benign and malignant renal tumors with nephron sparing surgery (NSS), and to assess its safety and feasibility. MethodsReviewing the literature for NSS, and records of patients who underwent NSS in the period from January 2000 to December 2009 at National Cancer Institute, Cairo University regarding the patient and tumor related characteristics, the indication for NSS, operative technique, postoperative complications, full histopathological data, and follow up results. ResultsThe total number of patients was 17. Mean age at surgery was 30.7 years (range 1.5–65 years). Five patients had bilateral tumors during surgery. The mean tumor size was 4.5 cm (range 1–9 cm). All patients had normal preoperative kidney functions. Seven patients had an absolute indication for NSS, 6 patients had a relative indication, and 4 patients had an elective indication. All the 5 patients with bilateral tumors underwent bilateral simultaneous surgery. Cold ischemia was used in 8 patients, 1 patient was exposed to warm ischemia, manual compression was used in 2 patients, and no vascular control was applied in 6 patients. Complications were encountered in 2 patients, one of them had urinary leakage which needed reoperation, and the other had subcutaneous hematoma which was treated conservatively. Histopathological analysis revealed Wilm’s tumor (8 patients), angiomyolipoma (4 patients), renal cell carcinoma (4 patients), and hydatid cyst (1 patient). All patients had negative surgical margin. For patients with Wilm’s tumor, the mean follow up was 21.4 months (range 0–94 months), 2 patients had local recurrence, and 1 patient had distant metastasis. For patients with RCC, the mean follow up was 15.3 months (5–33 months), no patients had local recurrence or distant metastasis. All patients had normal kidney functions during postoperative and follow up periods. ConclusionNSS is a feasible safe procedure that can be done with acceptable complications rate and it provides a good solution for patients with bilateral tumors, early localized renal cell carcinoma, and benign tumors. Key wordsnephron sparing surgery (NSS)–renal tumors–evaluationThe Chinese-German Journal of Clinical Oncology 04/2012; 10(9):517-522.