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WHO/ISUP classification


Reviewers: Sean Williamson, M.D. (see Reviewers page)
Revised: 2 June 2012, last major update June 2012
Copyright: (c) 2002-2012, PathologyOutlines.com, Inc.


● Also known as low-grade intraurothelial neoplasia (LG IUN)
● Low interobserver agreement on diagnosis, even among experts

Micro description

● Appreciable cytologic and architectural changes indicative of neoplasia, but less than CIS

End of Ureters > WHO/ISUP classification > Dysplasia

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