[Lymphadenectomy for bladder cancer. Diagnostic and prognostic significance as well as therapeutic benefit]

[Urothelial carcinoma]

Various study groups are working on the WHO classification of 2004 which eliminates the previous grades of differentiation G1, G2, and G3 and classifies non-muscle-invasive bladder cancer into genetically stable low-grade and genetically unstable high-grade urothelial carcinomas. In muscle-invasive bladder cancer, extended lymph node dissection as part of radical cystectomy should remain the standard procedure for now.