Impact of 2004 ISUP/WHO classification on bladder cancer grading

Abstract

To determine whether implementation of the 2004 WHO/ISUP bladder cancer (BCa) grading system caused a grade migration, i.e., more tumors being graded as high grade (HG). Data on 1040 BCa cases from 668 patients treated at our institution between 2000 and 2013 and reviewed by six pathologists were evaluated: low grade (LG): 249; HG: 791; Ta: 389; T1: 214… (More)
DOI: 10.1007/s00345-015-1548-x

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