title: Jass staging is a predictor of outcome following "curative" resection of Dukes' B colorectal carcinoma.
abstract: OBJECTIVE
  We have sought to determine if the addition of the Jass pathological classification to Dukes' staging would provide improved prognostic information for patients undergoing curative surgery for Dukes' B colorectal carcinoma.
  
  
  METHODS
  One hundred and eighty three patients who underwent curative surgery for Dukes' B colorectal cancers between December 1988 and January 1998 were identified. An assessment of Jass scoring was made at the time of initial histological staging. All patients entered a comprehensive follow-up system.
  
  
  RESULTS
  Jass grouping was found to correlate significantly with cancer specific mortality rates; group III having a worse prognosis than groups I and II (p<0.005). There was no significant difference between either local recurrence or systemic recurrence and the Jass group.
  
  
  CONCLUSIONS
  The Jass classification provides additional prognostic information in patients following curative resection of Dukes' B colorectal carcinoma and may therefore facilitate the selection of patients who will benefit most from adjuvant treatment
authors.affiliation: Department of Surgery, St Peter's Hospital, Surrey, UK.
authors.forename: B J
authors.initials: BJ
authors.lastname: Mander
authors.forename: L J
authors.initials: LJ
authors.lastname: Carney
authors.forename: H J
authors.initials: HJ
authors.lastname: Scott
authors.forename: D R
authors.initials: DR
authors.lastname: Donaldson
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002277:Carcinoma / Q000473:pathology* / Q000601:surgery*; D015179:Colorectal Neoplasms / Q000473:pathology* / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging / Q000379:methods*; D011237:Predictive Value of Tests; D012189:Retrospective Studies; D016896:Treatment Outcome