Concomitant cytology supported the brush diagnosis in all but one sample. Brush cytology is a specific and more sensitive sampling method than irrigation or catheterized urine in detecting TCC of the upper urinary tract. Most tumors of the upper urinary tract are epithelial tumors from transitional cell origin. They are more frequent in the renal pelvis than in the ureter. They may be single or multiple and rarely bilateral.
Gross hematuria is the most common presenting form.
Computed tomography is useful both in the diagnosis and staging and is much more contributive than intravenous pyelography. In selected cases are low grade and low stage tumors, conservative surgery can be discussed with similar longterm results than radical surgery. Its efficacy and safety are evaluated. The BCG solution was administe- red weekly by retrograde ureteral catheterization under local anesthesia and instillation during one hour. Second course instillat- ion was performed when 1st course was not effective.