... WM: The accuracy of urinarycytology in daily practice. Cancer 1999, 87:118-128.9. Kriegmair M, Knuchel R, Stepp H, Hofstaedter F, Hofstetter A: Detection of early bladder cancer by 5-aminolevulinic ... evaluation of a method fordetecting superficial surgical transitional cell carcinoma of the bladder by light-induced fluorescence of protoporphyrin IX following the topicalapplication of 5-aminolevulinic ... patients and if the improvement in the rate of detection of flat lesions in the follow-up may improvethe use of additional treatment and the prognosis of these patients.ConclusionsPhotodynamic...