The World Health Organization/International Society of Urological Pathology consensus classification of urothelial (transitional cell) neoplasms of the urinary bladder. Bladder Consensus Conference Committee

Am J Surg Pathol. 1998 Dec;22(12):1435-48. doi: 10.1097/00000478-199812000-00001.


This WHO/ISUP system is an attempt to develop as broad a consensus as possible in the classification of urothelial neoplasms, building upon earlier works and classification systems. It is meant to serve as a springboard for future studies that will help refine this classification, thus enabling us to provide better correlation of these lesions with their biologic behavior using uniform terminology.

Publication types

  • Consensus Development Conference
  • Review

MeSH terms

  • Carcinoma, Transitional Cell / classification*
  • Carcinoma, Transitional Cell / pathology
  • Humans
  • Neoplasm Invasiveness
  • Societies, Medical*
  • Terminology as Topic*
  • Urinary Bladder Neoplasms / classification*
  • Urinary Bladder Neoplasms / pathology
  • Urology / organization & administration
  • Urothelium / anatomy & histology
  • World Health Organization / organization & administration