NCIt definition : Endoscopic examination of the urinary bladder or urethra.;
Alternative definition : NCI-GLOSS: Examination of the bladder and urethra using a cystoscope, inserted into
the urethra. A cystoscope is a thin, tube-like instrument with a light and a lens
for viewing. It may also have a tool to remove tissue to be checked under a microscope
for signs of disease.;