Primary tumors of the upper urinary tract. Apropos of 49 cases and a review of the literature

: We report 49 tumors of the upper urinary tract treated between 1980 and 1988. Intravenous pyelography with direct opacification technics gave the diagnosis in 83.7% of patients. Ultrasonography and computed tomography were only reliable for tumors of renal pelvis. Urinary cytology gave good results only in high grade invasive transitional cell carcinoma. Nephro-ureterectomy is always recommended.