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Molecular pathology of non-invasive urothelial carcinomas (part I)


An international consultation on the diagnosis of non-invasive urothelial neoplasms was held in Ancona, Italy in May 2001. Besides histology and problems of classification, one group of experts (Committee no. 3) discussed the molecular pathology and cytometry of non-invasive urothelial carcinomas. In the following first part, special immunohistochemical and molecular markers for stratifications in bladder cancer were discussed including different cytokeratins (clone 34βE12, CK 20), cell proliferation markers (Ki67/MIB-1, PCNA, AgNOR, DNA-cytometry), tumor suppressor genes and oncogenes (p53, p21, erb-B2, bcl-2), different receptor expressions of epidermal growth factor and vascular endothelial growth factor and others. These molecular markers were analyzed in diagnosis of urothelial carcinomas, recurrences, progression and response to treatment.

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Correspondence to Burkhard Helpap.

Additional information

Authors were part of Committee no. 3, International Consultation on the Diagnosis of Non-Invasive Urothelial Neoplasms, Ancona, Italy, 11-12 May 2001

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Helpap, B., Schmitz-Dräger, B.J., Hamilton, P.W. et al. Molecular pathology of non-invasive urothelial carcinomas (part I). Virchows Arch 442, 309–316 (2003).

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  • Papillary bladder cancer
  • Non-invasive
  • Cell proliferation
  • Cytokeratins
  • Tumor suppressor genes