Editing Transurethral Resection of Bladder Tumour (section)

=== Lens ===
* Most commonly used lenses during rigid cystourethroscopy: 30° and 70°
*Urethra is best visualized using the 0 to 12° lens.
*'''<span style="color:#ff0000">For TURBT, a thorough visual inspection involves using (2):</span>''' 
*#'''<span style="color:#ff0000">30° lens to examine the urethra and then to perform a preliminary evaluation of the bladder mucosa and ureteral orifices.</span>''' 
*#'''<span style="color:#ff0000">70° lens should then be used to completely evaluate the bladder again with particular attention to the bladder neck, dome, and anterior wall.</span>'''
*#*The 70° or 120° lens are often required to inspect the anterior and inferolateral walls, dome, and neck of the bladder.
* '''<span style="color:#ff0000">For therapeutic purposes, a 30° lens is most often used</span>'''
** Resection is performed using a 12- or 30° lens because this deflection allows visualization of the cutting loop.