title: Colorectal adenocarcinoma in Crohn's disease.
abstract: OBJECTIVE
  The authors' aim was to review the clinical features and estimate the long-term survival of patients with colorectal carcinoma complicating Crohn's disease.
  
  
  BACKGROUND
  Recent studies have demonstrated a significantly increased risk of colorectal carcinoma in patients with Crohns disease.
  
  
  METHODS
  The authors reviewed retrospectively the medical records of 30 patients with Crohn's disease admitted to The Mount Sinai Hospital between 1960 and 1989 in whom colorectal adenocarcinoma developed. All patients were operated on and follow-up was complete for all patients to 10 years after operation, to the time of death, or to the closing date of the study in December 1989.
  
  
  RESULTS
  The 30 patients in the series had 33 colorectal adenocarcinomas; three patients (10%) presented with two synchronous cancers. The patients were relatively young (mean age, 53 years) and had long-standing Crohn's disease (duration >20 years in 87%). The 5-year actuarial survival was 44% for the overall series: 100% for stage A, 86% for stage B, 60% for stage C. All five patients with excluded bowel tumor died of large bowel cancer within 2.4 years; by contrast, the actuarial 5-year survival for patients with in-continuity tumors was 56%.
  
  
  CONCLUSIONS
  The incidence, characteristics, and prognosis of colorectal carcinoma complicating Crohn's disease are similar to the features of cancer in ulcerative colitis, including young age, multiple neoplasms, long duration of disease, and greater than a 50% 5-year survival rate (without excluded loops). These observations suggest the advisability of surveillance programs for Crohn's disease of the colon similar to those for ulcerative colitis of comparable duration and extent.
authors.affiliation: Department of Surgery, Mount Sinai School of Medicine, City University of New York, USA.
authors.forename: M B
authors.initials: MB
authors.lastname: Ribeiro
authors.forename: A J
authors.initials: AJ
authors.lastname: Greenstein
authors.forename: D B
authors.initials: DB
authors.lastname: Sachar
authors.forename: J
authors.initials: J
authors.lastname: Barth
authors.forename: S
authors.initials: S
authors.lastname: Balasubramanian
authors.forename: N
authors.initials: N
authors.lastname: Harpaz
authors.forename: T M
authors.initials: TM
authors.lastname: Heimann
authors.forename: A H
authors.initials: AH
authors.lastname: Aufses
mesh_terms: D000230:Adenocarcinoma / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D000328:Adult; D000368:Aged; D015179:Colorectal Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D003424:Crohn Disease / Q000150:complications* / Q000401:mortality / Q000473:pathology / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D009519:New York City / Q000453:epidemiology; D016016:Proportional Hazards Models; D012189:Retrospective Studies; D018709:Statistics, Nonparametric; D016019:Survival Analysis; D013997:Time Factors