... look resections of high risk 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 ... grasso.m@virgilio.it1Department of Urology, San Gerardo Hospital, University of Milano-Bicocca,Monza, ItalyFull list of author information is available at the end of the articleBlanco et al. Journal of Translational ... maintenanceschedule. However, the detection rate of these otherwiseundiagnosed lesions is higher with photodynamicscreening.The limitations of this study are the small number of patients included. However,...