[Photodynamic diagnostics of the bladder: current study results].

The diagnosis and follow-up of bladder cancer is based on the so-called golden standard of urine cytology and white light endoscopy. In recent years fluorescence endoscopy, also known as photodynamic diagnosis (PDD), of the urinary bladder has become more and more popular. The rising interest in this procedure becomes clear when looking at the current literature. Nowadays, there are studies on PDD from all over Europe and the USA. This article gives an up to date review of these new studies and shows new developments in the outpatient use of PDD.