Retrograde brush biopsy of the ureter and renal pelvis.
In resonse to the limitations of urinary cytology which have resulted in a high incidence of false negative reports, a technique of retrograde brush biopsy has been developed. This technique aids in the diagnosis of carcinomas of the ureteral and renal collecting systems, thereby permitting earlier and more intensive treatment of malignant lesions of the urinary tract.
D001706:Biopsy / Q000379:methods*; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D007682:Kidney Pelvis / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography; D014516:Ureteral Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*