NCIt definition : A fiberoptic instrument used to view the lining of the urethra and bladder. Urologists
can pass instruments through the scope to carry out procedures inside the urethra
and bladder.;
Alternative definition : NCI-GLOSS: A thin, tube-like instrument used to look inside the bladder and urethra.
A cystoscope has a light and a lens for viewing and may have a tool to remove tissue.;