Related Experiment Video
Updated: Jul 11, 2026

Probe-based Confocal Laser Endomicroscopy of the Urinary Tract: The Technique
Published on: January 10, 2013
The role of hexaminolevulinate fluorescence cystoscopy in bladder cancer
J Alfred Witjes1, Jude Douglass
1Department of Urology, University Medical Centre, St Radboud, Nijmegen, The Netherlands. f.witjes@uro.umcn.nl
Abstract:
Non-muscle-invasive bladder cancer is labor intensive and costly to manage. Owing to long-term survival rates and life-long monitoring and treatment, it is the most expensive cancer to manage in per-patient terms. Significant costs are attributable to the treatment of recurrences and complications. Fluorescence-guided cystoscopy, using 5-aminolevulinic acid (ALA) or its hexyl ester, hexaminolevulinate 5-ALA (Hexvix [HAL], Photocure, Oslo, Norway), improves the detection of bladder tumors, particularly carcinoma in situ, compared with standard white-light cystoscopy. The quality of transurethral resection of the bladder tumor is also improved. It has been shown that improved tumor detection leads to better patient management and, in the case of ALA, reduced long-term recurrence rates and costs. Long-term studies in this area with HAL are ongoing. The technique is well tolerated and is a useful adjunct to white-light cystoscopy.
Related Concept Videos
Imaging Studies VI: Voiding Cystourethrography and Cystography
Urologic Endoscopic Procedure: Cystoscopic Examination
Imaging Studies V: Intravenous Urography and Retrograde Pyelography

