Ureteroscopy procedure. Close-up of a surgeon carrying out a cystoscopy and ureteroscopy procedure on a 70-year-old man. This is being done to obtain a biopsy from his left ureter, the tube connecting his left kidney and his bladder. The surgical tubes used to examine the bladder and ureters and obtain samples are here inserted via the penis and its urethra, the tube that removes urine from the bladder. This biopsy is being performed to obtain a sample from a filling defect/mass in the lower part of the patient's left ureter. For footage from this operation, see clips K003/1787 to K003/1797.