Of 507 patients with renal tumours 36 (7.1%) presented with primary epithelial neoplasms of the renal pelvis. Histological investigation revealed benign papillomas in 3 (8.3%) cases. These patients underwent resection of the renal pelvis along with the tumour. Nephro-ureterectomy was performed in 33 patients, of whom 27 (75%) had it for transitional cell carcinoma, 5 (14%) for squamous cell carcinoma and 1 (2.7%) patient for solid carcinoma of the pelvis. Results of surgical treatment vary with the process stage so that the more advanced the stage, the poorer is the prognosis. High efficiency was shown of nephro-ureterectomy. At 5 years 9 of 13 operated on are alive without signs of metastatic disease.
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