ureteroscopy

Ureteroscopy is an examination of the upper urinary tract, usually performed with an endoscope that is passed through the urethra, bladder, and then directly into the ureter. The procedure is useful in the diagnosis and the treatment of disorders such as kidney stones.The examination may be performed with either a flexible or a rigid fiberoptic device while the patient is under a general anesthetic. The patient is usually free to go home after the examination.
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Ureteroscopy /ure·ter·os·copy/ examination of the ureter by means of a fiberoptic endoscope. [more]Ureteroscopy - Community and Resources

An examination of the inside of the kidney and ureter. A thin, lighted tube (called a ureteroscope) is passed through the urethra into the bladder, ureter, and renal pelvis (part of the kidney that collects, holds, and drains urine).